The galactic distances used to measure the acceleration of the universe are determined by observations of
a) trigonometric parallax
b) line broadening
c) Cepheid variable stars
d) exploding white dwarfs

Answers

Answer 1

The answer is D

Hope this helps:)

Answer 2

A lot of galaxies are receding from the milky way galaxy. The galactic distances used to measure the acceleration of the universe are determined by observations of exploding white dwarfs.

When a white dwarf star explodes as a supernova, it sounds like a nuclear weapon on Earth. Some research work has shown that white dwarfs can die in nuclear explosions known as type I supernovas

Some observations has shown the evidence that the universe is accelerating.  This accelerating expansion result from observations of the brightness of distant supernovae.

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Related Questions

Which of the following factors was key to the formation of the first civilization in the Nile Valley? A. Nomads acquired more livestock to increase their wealth. B. The region experienced a surplus of food. C. Artists created art to pass on to future generations. D. Farmers lived near a river that never flooded.

Answers

Answer:

B. The region experienced a surplus of food

Explanation:

The Nile River Valley is one of the places where the earliest civilizations developed. The main reason for this was that the region was providing the people living there with a surplus of food, thus they had much more spare time to specialize in other sectors. The surplus of food was due to the Nile River, as the river had annual flooding, and when it was flooding it was delivering new fertile deposits, thus making the soil very good for large scale agriculture, which the people used it in their advantage.

The Large Magellanic Cloud is a small galaxy that orbits the Milky Way. It is currently orbiting the Milky Way at a distance of roughly 160000 light-years from the galactic center at a velocity of about 300 km/s.

Use these values in the orbital velocity law to get an estimate of the Milky Way's mass within 160000 light-years from the center. (The value you obtain is a fairly rough estimate because the orbit of the Large Magellanic Cloud is not circular.)

Answers

Final answer:

Using the orbital velocity law and the given data, a rough estimate of the Milky Way's mass can be calculated. This involves plugging in the values into the formula M = v²r/G after appropriately converting the units.

Explanation:

The estimate of the Milky Way's mass can be calculated using the orbital velocity law. This law is represented by the equation v = sqrt(GM/r), where 'v' is the orbital velocity, 'G' is the gravitational constant, 'M' is the mass of the larger body (in this case, Milky Way), and 'r' is the radius. Given that v is about 300 km/s and r equals 160,000 light-years, we can rearrange the formula to solve for 'M'. So, M = v²r/G. You'll need to convert the units appropriately to get the result. Please note that this is a rough estimate since the orbit is not a perfect circle.

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12. How does the Miller-Urey experiment fall short of demonstrating that life can arise from inorganic molecules? Please explain.

A. It doesn't show a leap between a collection of amino acids and a single-celled organism.
B. It recreates the conditions that existed at the earth's beginning, but no molecules form as a result.
C. It doesn't provide evidence of the formation of amino acids.
D. It doesn't show how multicellular organisms developed from unicellular organisms.

Answers

Answer

Hi, the correct answer option is C. It doesn't provide evidence of the formation of amino acids

Explanation

The Miller-Urey experiment was determined to show that life could arise spontaneously from non-living molecules. This was called chemical evolution or abiogenesis. The challenges in this experiment were; To produce non-fiction amino acid and proteins the experiment was to be highly controlled which destroyed the proteins. Cross-reaction process applied interfered with amino acid production. In addition, sugar which a vital compound for life affected amino acid synthesis. The experiments further produced other toxic compounds such as cyanide that were difficult to identify during the research.

All the Best!

The way that Miller-Urey experiment fell short was A. It doesn't show a leap between a collection of amino acids and a single-celled organism.

What did the Miller-Urey experiment show?

The Miller-Urey experiment, conducted in 1953 by Stanley Miller and Harold Urey, was a groundbreaking experiment that attempted to simulate the conditions believed to exist on early Earth in order to investigate the possibility of life arising from inorganic molecules.

The Miller-Urey experiment successfully demonstrated that amino acids, which are the building blocks of proteins and essential for life, could form under the conditions they simulated.

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Texas and oklahoma are the only two states that have

Answers

Answer:

bifurcated court system

Explanation:

Which regions fell under axis rule between 1939 and 1941

Answers

In the period between 1941, the axis rule spread out over large territory. In Europe, the axis powers managed to invade all of Central Europe, all of Eastern Europe, the Balkans, France and Benelux, Denmark, Norway and Finland, as well as parts of the southern part of European Russia, and parts of the Caucasus. Not all of this territory was actually invaded as there were multiple collaborating countries, like Bulgaria, the newly formed Albania, the ustashi in Croatia, Finland, Hungary, Lithuania, which all helped a lot in the expansion of the axis rule.

In Asia, the third axis power, Japan, was also on the move, having put under its control part of Sakhalin, Manchuria, the Korean Peninsula, and Taiwan by 1941, with further expansion in the following year.

Which material forms in sediments and is a precursor to hydrocarbons? Please explain.

A. Cyanobacteria
B. Nitrates
C. Kerogen
D. Methane

Answers

Answer:

C. Kerogen

Explanation:

Keorgen is an organic matter usually found in sedimentary rock. It is widely regarded as the precursor to oil and natural gas.

Keorgens are the constituent of source rocks from which oil is derieved at appropriate temperature and pressure.

Kerogens are formed when organic matter are rapidly buried in anoxic environments ie. environments that lacks oxygen. Rapid burial of organic matter can produce such an environment.

With rapid burial, these organic matter can be broken down to produce oil and gas.

Keorgens are of different classes based on the type of organic matter that forms them.

We have type 1 Keorgen derieved from Algae

Type 2 kerogen is rich in marine and terrestrial organic matter.

Type 3 kerogen are made up of woody plants.

Chemical analysis of kerogen can tell us more about them.

Type 1 kerogen yeilds oil

Type 2 kerogen produce waxy oil

Type 3 kerogen produce gas

When Keorgen is broken down in a source rock, the oil migrates through a path into the reservoir rock from which it accumulates. A reservoir has a cap rock or seal to prevemt leak of.

Answer:

Option (C)- Kerogen

Explanation:

The Kerogen is usually the complex type of waxy mixture made up of compounds containing hydrogen and carbon. These hydrocarbons are the main organic elements that are present in the oil shale. It is basically comprised of paraffin hydrocarbons. In addition to this, they also contain some amount of nitrogen and sulphur in their solid mixture. This kerogen usually forms in the sediments that occur prior to the formation of hydrocarbons.

Further explanation:

Kerogens are the compounds of hydrocarbons that do not dissolve when mixed with water and other organic solvents namely alcohol or benzene. These molecules of paraffin usually dissociates into gases and liquid substances (like petroleum) when heated under a certain pressure condition, which can be again recollected. The presence of this property allows the oil shale to form a significant amount of crude oil.

These kerogens are predicted to have created from the solidified and lithified materials that are organic in nature. These organic materials include algae and other variety of plant lives which were gathered at the bottom of the ancient seas and ocean bodies about millions of years ago. These are formed under the deep marine condition. Petroleum also is formed in this way.

The hydrocarbons are generated after the formation of these kerogens in the sediments that combines to form sedimentary rocks over millions of years. These kerogens if provided the necessary condition such as increased pressure and temperature condition, form hydrocarbons such as petroleum, crude oil, and natural gas.

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1. Oil shale and kerogen https://brainly.com/question/5864789  (answer by Flyyboyy25oxbb32)  

2. crude oil and its formation https://brainly.com/question/8121346  (answer by Peterdaly)

Keywords:

Kerogen, Wavy mixture, Hydrocarbons, Paraffin, Petroleum, Crude oil, Lithification, Natural gas, Sedimentary rocks.

What structure do sediments form at the end of a river?

Answers

Answer:

Delta

Explanation:

At the end of the rivers, the water becomes much slower, and on top of it, it is entering another larger body of water. Because of this, the water loses its velocity, thus it is not able to carry the sediments anymore. The sediments are then deposited on a large scale at the end of the river, gradually forming a large area of soft, fine sediments. As the deposition of the sediments is becoming bigger and bigger, the waters of the river are blocked in certain parts, so the river spreads out into multiple smaller parts across the sediments, usually taking up a triangular shape. This natural formation form the sediments is called delta, and there are lot of examples around the world of it, some occupying very large areas, like the delta of the Nile River in Egypt.

Final answer:

Deltas form at the end of rivers as sediment accumulates due to decreased water velocity, creating unique formations. Sediment deposition shapes landscapes and produces various structures like ripples and dunes.

Explanation:

Deltas form at the end of a river where sediments accumulate due to a decrease in water velocity. As sediments build up, river water overflows, erodes a new channel, and this process repeats, shaping delta formations. Sediment deposition is a vital part of river processes, affecting landscapes and forming various sedimentary structures such as ripples and dunes.

Which landform covers most of southwest australia?

Answers

Answer:

Darling Scarp/Darling Range

Explanation:

The southwestern part of Australia is dominated by the Darling Scarp, often referred to as the Darling Range as well. The Darling Scarp is lifting up sharply from the lowlands along the coastline. It is not a high area, but it is considered as plateau, including also some smaller mountains on its edges.

This geologic formation is a very old one, and it is attributed to a fault that has existed there in the past. The fault though can not be seen nowadays as the Darling Scarp is eroded some 15 km to the east. The coastal plains around it are younger and they have formed from separate geologic activities.

This area is mostly arid and semi-arid. The climate is mostly hot and dry, with slight drops in temperature in some parts during the winter periods. It is an area mostly dominated with drought resistant shrubs and grasses.

Which of these would NOT contribute to a global increase in temperature?
-deforestation
-increasing the use of gasoline-burning vehicles
-increasing the industrial release of carbon dioxide
-planting trees

Answers

Answer: planting trees

Trees are very important in the fight against climate change, because they purify the air and lower the temperature of the areas where they exist.

They do this during their growth and throughout their lives, through the process of photosynthesis, in which they absorb carbon dioxide from the air (one of the main causes of the greenhouse effect) to "feed" themselves and then release oxygen.

In addition, in this process the trees help in the evaporation of water into the atmosphere, which increases the cloudiness with the consequent cooling effect on the surface.

That is why planting trees is very important, especially in the tropical areas of the Earth, because in this region the trees also allow the formation of convective clouds that help to cool the entire planet.

Mountain range separating europe and asia - ___________

Answers

Answer:

Ural Mountains

Explanation:

What type of weather does low pressure bring?

Answers

Answer:

Stormy and windy

Explanation:

Low-pressure weather systems usually bring windy and stormy weather, it's considered "bad weather".

In a low-pressure system, the air is warmed up by the ground, raises in the air bringing humidity from the ground up in the sky.  The air going up creates winds and clouds.  That can lead to a cloudy sky, to winds and even precipitations.  That's why it's usually considered "bad weather".

The opposite, the high-pressure systems, are usually associated to "good weather" with a clear sky and all.

The most likely reason today’s population is growing in certain areas or countries is because land and resources are available. people are leaving rural areas and moving to urban areas. people are emigrating from war-torn areas to peaceful areas. government policy is favorable.

Answers

Answer:

The most likely reason today’s population is growing in certain areas or countries is because land and resources are available.

Explanation:  The more land a country has, the more people will travel to it.

The most likely reason today's population is growing in certain areas or countries is because people are leaving rural areas and moving to urban areas.

People who migrate to towns and cities tend to be young adults and therefore have higher birth ratesBetter medical conditions compared to the countryside mean more successful births and a better life expectancyEmployment opportunities are greater within urban areas. better paid jobs in the cities, an expected higher standard of living , and more reliable food are all pull factors - reasons why people are attracted to the city. people who migrate to towns and cities Rural areas are the opposite of urban areas. Rural areas, often called "the country," have low population density and large amounts of undeveloped land. Usually, the difference between a rural area and an urban area is clear.There are often roads of a better quality and well-built houses in urban areas. Transport facilities are highly developed and often receive regular funding for updates. It can be faster to get from place to place in a city or town. Most amenities and entertainments are easy to reach.

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Which statements best describe these two minerals? Select 3 choices.

The mineral on the left formed from lava.

The mineral on the right formed from magma.

The mineral on the left has larger crystals than the mineral on the right.

The mineral on the left cooled more slowly than the mineral on the right. The mineral on the left has a shinier luster than the mineral on the right.

Answers

Final answer:

The mineral on the right likely formed from magma beneath the Earth's surface, cooled slowly, and has larger crystals typical of intrusive rocks like granite. The one on the left, formed from lava on the surface, would have smaller crystals indicating a faster cooling process typical of extrusive rocks like basalt. The statement regarding luster is not directly related to the information given about the formation and cooling of minerals.

Explanation:

Based on the provided information, we can make the following conclusions about the minerals in question:

The mineral that formed from magma that cooled below the Earth's surface, which cooled gradually and slowly, allowing individual crystals to grow large, suggests that the mineral on the right is likely intrusive and plutonic, such as granite.The mineral on the left that formed from lava would have cooled more quickly on the surface, resulting in smaller crystal sizes, indicative of an extrusive or volcanic rock, such as basalt.If the statement indicates that the mineral on the left has larger crystals than the mineral on the right, this would be contradictory to the general understanding of crystal size relative to the cooling process, hence it would not be a correct statement in this context unless there was an atypical cooling process or the statement refers to an unusual observation.

The statement about shinier luster is not addressed with provided information and luster can vary among minerals, so it is not directly related to their mode of formation or crystal size.

Which of the following is not a mineral resource found in Central America?

a.
bauxite
c.
copper
b.
nickel
d.
gold

Answers

It's gold I believe that is not found in Central America

Answer: I believe it's gold

Explanation:

I am going to pose a situation to you and I want you to use your knowledge of geologic time and erosion (i.e. unconformities) to formulate a response. The ideal response would be ~5 sentences with scientific data to back up your opinion.

You are having a conversation with a random person and they say to you "I don't believe the Earth is thousands of millions of years old because there should be more sedimentary rock layers if Earth is that old.". As earth scientists, we know that statement isn't true. How would you respond to let this person know that their argument is false and does not make sense? What lines of evidence would you provide to support your statements? Remember, the best scientist is one that can articulate themselves in a respectful, accurate manner.

Answers

Answer:

Explanation:

The earth is a dynamic planet and it is constantly changing. Both external and internal processes interacts.

The earth broken down into slabs/plates called lithosphere that moves on the weak asthenosphere, at margins between these plates, new materials are brought up and some are destroyed through tectonic activities. Sedimentary rocks can therefore be destroyed and transformed into other rocks at such margins.

Also, on the earth surface, external processes helps break down rocks. Some of the processes are weathering and erosion. Sedimentary rock strata observed on the earth have shown periods of non-deposition in them.

External processes and tectonic forces on the earth can considerable influence and interrupt sedimentary deposition on the crust.

What are the two landlocked countries in south america?

Answers

Paraguay and Bolivia

What two cities are located near the delta of the nile river?

Answers

The two cities that are located near the delta of the Nile river are Alexandria and Cairo.

What is the average temperature in temperate deciduous forests?

Answers

Answer:

approximately 50 degrees Fahrenheit or 10 degrees celsius

Explanation: because of where they are placed on earth

What is the only continent without reptiles or snakes?

Answers

The Arctic and Antarctic continents - they're way too cold.

The Antarctic’s or Regions up very north in the cold

The area south/north of the Atlas Mountains receives more precipitation.

Answers

Answer:

North

Explanation:

The North of the Atlas Mountains receive much more precipitations than the South.

The Atlas mountains are located in Northern part of Africa.  The humidity comes from the Atlantic and the Mediterranean sea and is blocked by the high mountains (reaching over 13,000 feet).. so the rain has to fall on the North side of the mountains.

The South side is mostly dry and receive very little precipitation because it's blocked by the mountains.

Answer:

The area north of the Atlas Mountains receives more precipitation.

Hope this helps chu.

Which statements describe the Nile River.

Ancient civilizations once lived along the Nile.
Fertile lands surround the Nile.
Few people live near the river.
The Nile provides irrigation for surrounding farms.
The Nile runs through Libya and Tunisia.

Answers

Answer:

Ancient civilizations once lived along the Nile.

Fertile lands surround the Nile.

The Nile provides irrigation for surrounding farms

Explanation:

The Nile, the longest river in the world, flows across Tanzania, Uganda, Rwanda, Burundi, Democratic Republic of the Congo, Kenya, Ethiopia, Eritrea, South Sudan, Sudan, and Egypt. The fertile lands surrounding the Nile have been inhabited for Ancient civilizations since the advent of agriculture. Ancient Farmers discovered that the fertile flooded soils of surrounding the river were perfect for growing crops and irrigation of surrounding farms.

The statements that describe the Nile River are:

1. Ancient civilizations once lived along the Nile.

2. Fertile lands surround the Nile.

3. The Nile provides irrigation for surrounding farms.

Let's analyze each statement:

 1. Ancient civilizations once lived along the Nile: This statement is true. The Nile River was the lifeline of the ancient Egyptian civilization. The river's predictable flooding pattern provided a reliable source of water for crops, which allowed the civilization to thrive.

2. Fertile lands surround the Nile: This statement is true. The annual flooding of the Nile deposited nutrient-rich silt along its banks, which made the surrounding land extremely fertile and ideal for agriculture.

3. Few people live near the river: This statement is false. Historically, and even today, the Nile River is lined with numerous cities and communities. It has been a center of population for thousands of years due to the fertile land and water supply it provides.

4. The Nile provides irrigation for surrounding farms: This statement is true. The Nile has been used for irrigation since ancient times. Modern irrigation systems continue to utilize the river's water to support agriculture in the region.

5. The Nile runs through Libya and Tunisia: This statement is false. The Nile River flows through Sudan and Egypt, eventually emptying into the Mediterranean Sea. It does not run through Libya or Tunisia."

Full question

Which statements describe the Nile River? (Select all that apply)

a) Ancient civilizations once lived along the Nile.  

b) Fertile lands surround the Nile.  

c) Few people live near the river.  

d) The Nile provides irrigation for surrounding farms.  

e) The Nile runs through Libya and Tunisia.

Which best describes Oceania?
A: A region composed mostly of islands
B: A region with little cuture variation
C: A region that has only a few large countries
D: A region that lies in the Northern Hemisphere
NEED APEX ANSWER

Answers

I’m not sure but it’s got to be D or A

Oceania is described as a region composed mostly of islands. Thus, the correct option is (A).

The Central and South Pacific Oceans contain hundreds of islands that comprise the Oceania area. It includes Australia, the continent with the lowest total land area of any continent.

One-fifth of the Earth's surface, or around 100 million square kilometers, is made up of Oceania.

Oceania is the biggest area on Earth in terms of territory; it is made up of Melanesia, Micronesia, and Polynesia.

The Pacific, which is larger than all of the Earth's continental landmasses and islands combined, covers the majority of Australia and Oceania.

Therefore, the correct option is "A".

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When Jan and Detmar Wolcinski bought their 152-year-old house, they began remodeling it with one goal in mind — opening a bed and breakfast inn. The Chadwick Inn has exceeded the Wolcinski's expectations in its first year of operation, but now some neighbors are starting to complain about the increased traffic in their neighborhood and the late hours some of the Inn's guests keep. The Wolcinski's greatest challenge in the near future is most likely ________.

Answers

Answer:

zoning laws prohibiting commercial businesses in a residentially zoned area

Explanation:

The correct option is B), "zoning laws prohibiting commercial businesses in a residentially zoned area.", as the Wolcinskis' greatest challenge is likely to be zoning laws prohibiting commercial businesses in residential areas, given the neighbors' complaints about increased traffic and late hours. Zoning laws are crucial for maintaining the designated use of land in neighborhoods.

They must address these legal issues to ensure the continued operation of their bed and breakfast.The question about Jan and Detmar Wolcinski's Chadwick Inn addresses the primary challenge they are likely to face given the complaints from neighbors about increased traffic and late hours. The most plausible challenge is B) zoning laws prohibiting commercial businesses in a residentially zoned area.Zoning laws are designed to segregate land use to avoid disruptions in residential zones, making it crucial for the Wolcinskis to address these legal hurdles to continue operating their bed and breakfast successfully.

Full Question:
When Jan and Detmar Wolcinski bought their 152-year-old house, they began remodeling it with one goal in mind: opening a bed and breakfast inn. The Chadwick Inn has exceeded the Wolcinski's expectations in its first year of operation, but now some neighbors are starting to complain about the increased traffic in their neighborhood and the late hours some of the Inn's guests keep. The Wolcinski's greatest challenge in the near future is most likely ___________.

A) convincing the local historical preservation board that the modifications they made to the house are in keeping with its historical character.

B) zoning laws prohibiting commercial businesses in a residentially zoned area.

C) major hotel chains opening competing "bed and breakfast" hotels on adjacent lots.

D) encroaching shopping centers and malls that push up real estate prices.

Something sailors may see over the horizon

Answers

Answer:

jesus' light

Explanation:

which statemnet accurately describes a P wave?

Answers

Answer:

B. P waves can travel through liquids

Explanation:

P waves or primary waves are elastic waves produced from an earthquake. They are the first waves that arrives a Seismic station when an earthquake disturbs the earth.

P and S waves are both body waves that moves within the earth.

P- waves travel faster than S- waves and can propagate through any medium. S-waves or Secondary waves are shear waves that can only propagate through soilds.

Both waves are longitudinal and moves parallel to their source of propagation. They move by disturbing other particles in their line.

Transverse waves are the love and rayleigh waves. They are both surface waves that travels and cause disturbance on the surface of the earth during an earthquake. They move up and down.

The world map below shows the locations of San Francisco and Dublin.

The picture shows the world map. San Francisco is labeled on the west coast of the United States of America. Dublin is shown as

Which of these statements best explains why San Francisco and Dublin have similar temperatures throughout the year? (2 points)

San Francisco and Dublin are both located in the northern hemisphere.

San Francisco and Dublin are both influenced by the same ocean currents.

San Francisco is located close to the equator and Dublin is located close to the tropics.

San Francisco is influenced by coastal upwelling and Dublin is influenced by the Gulf Stream.

Answers

Answer:

San Francisco is influenced by coastal upwelling and Dublin is influenced by the Gulf Stream

Explanation:

San Francisco and Dublin are cities that are located in the Northern Hemisphere, at similar latitudes, with Dublin being the one that is slightly more north. Despite them being influenced by different oceans, San Francisco by the Pacific Ocean, while Dublin by the Atlantic Ocean, they have very similar weather conditions. San Francisco is influenced by a coastal upwelling. This brings a lot of moisture, manifested through lot of clouds and precipitation throughout the year, also keeping the temperature mild and without any extremes. Dublin on the other side, is influenced by the Gulf Stream, which is a warm ocean current that brings in warm and moist air masses. That results in milder climate than what would be expected on that latitude, with lot of precipitation, and littlno to no extremes in the temperature.

Final answer:

San Francisco and Dublin have similar temperatures due to oceanic influences such as coastal upwelling and the Gulf Stream, not because of their latitude or proximity to the equator or tropics.

Explanation:

The best explanation for why San Francisco and Dublin have similar temperatures throughout the year is because of the oceanic influences on both cities. More specifically, San Francisco's climate is largely influenced by coastal upwelling, where cold water is brought to the surface, which in turn moderates the city's temperature. On the other hand, Dublin's climate is largely influenced by the Gulf Stream, a warm ocean current that helps to temper the city's climate, preventing it from getting too cold.

While both cities are indeed located in the northern hemisphere, it's the specific oceanic influences that result in their similar annual temperatures, rather than their latitude alone. Moreover, neither city is particularly close to the equator or the tropics, so these are not significant factors in their respective climates.

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What can we do about climate change (if anything)? What could happen in the next 20 - 80 years?

Answers

We should grow many trees.If we don't the world will warm in the next 20-80 years.

What is the body of water that ispart of the Atlantic Ocean between Great Britian and the continent of Europe

Answers

The body of water between Great Britain and the continent of Europe is the North Sea

What six countries is indian subcontinent composed of

Answers

Answer: India, Pakistan, Bangladesh, Nepal, Bhutan, Sri Lanka and Maldives

The Indian subcontinent (also called South Asia) is the geographical region that is currently divided among the states of India, Pakistan, Bangladesh, Nepal and Bhutan. However, for cultural and geographical reasons, the island states of Sri Lanka and Maldives are also considered part of this subcontinent.

This landmass, which is a peninsula in the southern region of Asia, is mostly situated on the Indian Plate. In this sense, it is considered a subcontinent because it belongs to a continent, but is smaller compared to a continent.  

Nevertheless, this region is part of a distinct landmass that was originally larger, but after the separations due to the movement of tectonic plates, it became part of Asia.

Where is erosion concentrated along a meandering stream?

Answers

Answer:

On the outer parts of the meander loops or bends

Final answer:

Erosion in a meandering stream occurs primarily along the outer bends, where the water's velocity leads to sediment scouring, while deposition happens on the inner bends due to slower water velocity.

Explanation:

In a meandering stream, erosion is concentrated along the outer bends, or cut banks, of the meanders. As the water flows through these bends, the combination of the water's velocity and its tendency to scour leads to the erosion of sediments from the bank. This process gradually widens the channel on the outside of the bend. On the other hand, on the inner bends, or point bars, where the water velocity is slower, sediment is deposited. This tendency for erosion on the outer bend and deposition on the inner bend is what gives meandering streams their characteristic sinuous shape.

The panoramic view of meanders in the San Juan River, for instance, showcases this effect, as seen in the layered sedimentary rock formations where the river has cut through, demonstrating the principle of lateral continuity. Moreover, as rivers flow downstream, their channels widen, the flow slows, and they carry increasing amounts of silt and sediment, contributing to the deposition on the inner bends. This interplay of erosion and deposition is a key factor in shaping the landscape over time.

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Each year, an average person in the United States is exposed to a radiation level of _____.2 rems200 rems0.2 rems20 rems Plz help me with this How large is the greatest possible error for measurement of 77 inches hurry i need this!!!!!!!!!!!!! Factor to find the zeros of the function defined by the quadratic expression.4x2 24x 108A)x = 3 or x = 9B)x = 3 or x = 9C)x = 3 or x = 9D)x = 3 or x = 9 Which biome is commonly found near the equator? O tropical forest temperate forest O temperate grassland O coniferous forest Earthquakes are especially common in which of the following regions?A.the Hindu KushB.The Empty QuarterC.Iranian PlateauD.Strait of Hormuz (its C.Iranian Plateau. on Edge) Multiple choice How many degrees are in angle A? what is the slope of the line that passes through (-2,2) and (-4,-2) 31. Elephants are not the most dominant species in African grasslands, yet they influence community structure. The grasslands contain scattered woody plants, but they are kept in check by the uprooting activities of the elephants. If the elephants are taken away, the grasslands convert to forests or to shrublands. The newly growing forests support fewer species than the previous grasslands. Which of the following describes why elephants are the keystone species in this scenario? A) Elephants exhibit a disproportionate influence on the structure of the community relative to their abundance. B) Grazing animals depend upon the elephants to convert forests to grassland. C) Elephants prevent drought in African grasslands. D) Elephants are the biggest herbivore in this community. E) Elephants help other populations survive by keeping out many of the large African predators. Please explain your answer as well. THX!! 5.06 Electromagnetic Spectrum Guided Notes. The__________is a range of wavelengths and frequencies of electromagnetic radiation.A ______________ is the distance between the crest of successive waves.What is frequency?What is the relationship between wavelength and frequency of radiation on the electromagnetic spectrum.______________ at astronomical observations capture this light even better, providing a clearer picture of out galaxy. NEED HELP ASAP!!!!!!For an African, whether you were sent to the Caribbean or South America, you were now part of the sugar machine. And it did not much matter where your ship landed. You could be working the fertile fields of Brazil or the hills of Jamaica; the brutal cycle of making sugar was much the same. If the terrain was not too rocky or hilly, you might be part of a group of slaves who drove teams of oxen to draw plows across the fields. On rougher ground, you were sent out to clear a space five inches deep and five feet square. Then you dug holes for the cane shoots in the cleared squares. You needed to work quickly and without stopping. Overseers watched closely to make sure of that, beating slaves who did not carve out at least twenty-eight holes an hour on one French island. The painstaking work had just one aim: to plant a crop that would end up taking the life of every worker who touched it. As Equiano explained, the sugar slaves could hardly rest even when their day was done. How do the authors create a tone that develops their claim and purpose? by using words with negative connotations, such as brutal by describing the land with positive connotations, such as fertile by describing the land with negative connotations, such as rocky by using words with neutral connotations, such as plant ANSWER QUICKLY ASAP PLEASEHonor means keeping promises. This is a common theme found in Jungle Book: Mowgli's Brothers.Which detail best supports the idea that honor means keeping promises?Shere Khan boldly moves to speak to the Pack about taking Mowgli away.Bagheera asks the Pack to remember a bargain they made to protect Mowgli.Mowgli is brave in fighting the Pack but cries when leaving his family.Bagheera comforts Mowgli when it is time for Mowgli to leave the Pack. CHORDS AND ARCs: Find the value of x what is the value of z in the diagram? an equilateral triangle has a perimeter of 36 cm. what is the area? What is the value of x?Enter your answer in the box. PLS HELP. Find the first four terms of the recursive sequence defined by the following formula: If the length of an arc is 12 inches and the radius of the circle is 10 inches, what is the measure of the arc? 216 degrees 270 degrees 288 degrees