I would go with option A
hope that helped you
need help asap!!!plzz
Which statement explains why the organisms that require oxygen today owe their existence to the early autotrophs on Earth?
(A)Autotrophs cleaned Earth’s water so that modern organisms could drink it.
(B)Autotrophs produced oxygen as a waste product, which built up in the atmosphere.
(C)Autotrophs used the methane that was present in early Earth’s atmosphere.
Answer:
B) Autotrophs produced oxygen as a waste product, which built up in the atmosphere.
Explanation:
Autotrophs feed off carbon dioxide as an energy source and release oxygen in exchange.
Hope this helps! :)
What is the diameter of earth
Answer:
7,917.5 mi
Explanation:
Answer:
The diameter of Earth is 7,917.5 miles
The Grand Canyon, as seen here, can be compared to a(n) __________ under the Earth's oceans. A) trench B) abyssal plain C) mid-ocean ridge D) continental shelf
I believe the answer would be trench.
4 disadvantages of highlands
Answer:
Finding water, growing things, such as crops, all that climbing and no fertile soil
Explanation:
Highlands have four main disadvantages: harsh climate, poor accessibility, limited agricultural potential, and environmental vulnerability.
Explanation:Highlands refer to elevated areas of land, usually located at higher altitudes. While highlands have many advantages, such as their scenic beauty and suitability for agriculture, there are also some disadvantages associated with them. Four disadvantages of highlands are:
Harsh Climate: Highlands often experience cooler temperatures and more extreme weather conditions compared to lowland areas. This can make it challenging for people to live and engage in certain activities in highland regions.Poor Accessibility: Due to steep slopes and rugged terrains, highlands may have limited transportation infrastructure. This can hinder economic development and make it difficult for people to access essential services.Limited Agricultural Potential: The higher altitudes and cooler climates of highlands can restrict the types of crops that can be grown. This can lead to limited agricultural productivity and food insecurity in highland regions.Environmental Vulnerability: Highlands are often more susceptible to natural hazards such as landslides, avalanches, and erosion. These hazards can pose risks to human settlements and infrastructure.In summary, while highlands have their advantages, they also come with some challenges related to climate, accessibility, agricultural potential, and environmental vulnerability.
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Can someone make a factfile poster (pref. PowerPoint) about Tsunamis thank you
Answer
I maybe could
Explanation:
What about Tsunamis? when is it due?
Which of the following geological features forms at a subduction zone between an oceanic and a continental plate? A. The lithosphere B. Continental shelf C. Magnetic anomalies D. Mid-ocean ridge
Answer:
Continental shelf
Explanation:
The subdustion zones between the oceanic tectonic plates and continental tectonic plates go in both ways when it comes to the lithosphere. They are both destructive and constructive. With the subduction zone occurring, the crust from the oceanic plate gets into the mantle, gets melted, and thus destroyed. On the other hand, this type of boundary enables the magma from the mantle to penetrate through the crust and reach the surface. As the magma reaches the surface, it starts to create volcanoes, be it in the form of island arcs or continental arcs. The volcanoes then release lot of lava from them on the surface, and this lava cools off and creates new layers of rock. The uplifting volcanoes, as well as the push of the plate that subducts, results in creating a shellow and relatively flat part of the ocean which is alongside the coastline. This shallow and flat part of the ocean is known as continental shelf. The continental shelf is the part of the ocean that has the warmest water, the light penetrates through all of its waters, and it is the most abundant in life. It depth is relatively small.
Answer:
Option (B)
Explanation:
During a convergent collision, the two plates move towards each other, as a result of which the denser plate sinks below the lighter plate. It results in the formation of a subduction zone marked by the trench above it and also leads to the uprising of magma to the surface forming volcanoes.
In the case of a convergent plate boundary between an oceanic and a continental plate, the continental shelf forms along the edge of the continental margin whose slope gradually declines towards the colliding boundary.
Thus, the correct answer is option (B).
3. What determines the maximum rate at which a renewable resource can be harvested?
O A. The nitrogen cycle
O B. Sustainable yield
O C. Desalination
O D. Siltation
Answer:
B. Sustainable yield
Explanation:
The renewable resources are resources that are able to renew on their own. Still, that doesn't mean that these resources can provide endless amounts, but it has to be taken in consideration what is the sustainable yield. We can take the trees as a perfect example. The wood is a renewable resource, but in order for it to be renewable, the trees that have been taken down have to be replaced with young saplings, so that they replace in time the ones that have been removed. If that is not practiced, and much more trees are taken down than what are planted, then the trees will eventually come to an end, and after some time there will be no trees left to be used as a resource.
Sustainable yield determines the maximum rate at which a renewable resource can be harvested. Correct option is b.
The maximum rate at which a renewable resource can be harvested is determined by the concept of "sustainable yield." Sustainable yield refers to the maximum rate at which a renewable resource, such as fish from a fishery or timber from a forest, can be harvested over the long term without depleting the resource's ability to replenish itself.
Sustainable yield takes into account the natural regeneration and reproduction rates of the resource, ensuring that the harvesting rate does not exceed the resource's capacity to replenish itself. It is a crucial concept in natural resource management to maintain ecological balance and prevent overexploitation, which could lead to the depletion of the resource and ecological damage.
Option A, the nitrogen cycle, is a biogeochemical cycle involving the transformation and circulation of nitrogen in the environment but is not directly related to determining the maximum harvest rate of a renewable resource.
Option C, desalination, is a process of removing salt and other minerals from seawater to produce freshwater. It is not related to the maximum harvest rate of renewable resources.
Option D, siltation, refers to the deposition of sediment, such as silt and sand, in bodies of water, affecting water quality and aquatic ecosystems but does not determine the maximum harvest rate of renewable resources.
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A natural disaster caused an ecosystem to experience a significant drop in species richness. What can you conclude about the ecosystem? A. Evenness changed from high to low. B. Evenness changed from low to high. C. There’s decreased biodiversity in the ecosystem. D. There’s increased biodiversity in the ecosystem.
C.There's decreased biodiversity in the ecosystem because of human and or natural cause.(eg:deforestation)
Hope this help!!Gd luck!
Final answer:
The ecosystem experienced a drop in species richness due to a natural disaster, leading to decreased biodiversity.
Explanation:
Decreased biodiversity can be concluded about the ecosystem that experienced a significant drop in species richness due to a natural disaster. When species richness declines, it indicates a loss of biodiversity. This is often seen in ecosystems after disturbances, where common species become more common at the expense of rare species.
This decrease may affect not only the number of species, but also the balance and functionality of the ecosystem, as species interactions and the unique features within the ecosystem are lost.
Where is the hole in the ozone located???
Please help me...
I’m confused.
Answer:
The hole in the ozone layer is located just between the mesosphere and the stratosphere.
Hope I helped! :)
Which of the following describes how a substance farmer uses land
Answer:
They use the land to harvest and grow crops for their family
Explanation:
Under natural conditions, oceans are _____.
self-cleaning systems
ideal waste-dumping grounds
of no use to humans
most damaged by air pollution
Answer:
Self-cleaning systems
Explanation:
Oceans are natural self cleaning systems that can get rid of any material on their own.
At some parts of the ocean, new crust are being formed. In some other part, new crustal materials are added.
When organisms in the ocean die, they decay to produce some carbon compounds which goes back to the ocean and atmosphere. Their skeletal parts goes to the bottom of the ocean where it compacts with sediments to form new sedimentary rock sequences.
When wastes from land are brought into the ocean, they can be broken down on the long run.
The ocean is self cleaning and it is an effective system as such.
What is a newly industrialized nation?
Select one:
a. a country with an agrarian based economy, but social and political progress
b. a country with a more advanced economy, but not the same social and political progress
c. a country with industry and farming
d. a country with social and political progress, but lacking an advanced economic system
Answer:
A country with industries and agriculture
Explanation:
Industrialization is the advancement of the economy and the shift from a purely agrarian economy to a semi-industrial economy. The dependence of the economy on agriculture is reduced.
Answer:
B. A country with a more advanced economy, but not the same social and political progress
Explanation:
The countries whose economy have become advanced than developing countries but are still not recognized as developed countries, are called newly industrialized nations.
As the name suggests, the industrial economy plays an important role in the rapid economic development of a newly industrialized nation.
Industrialization attracts immigrants through employment opportunities thereby improving immigrants’ life. The democratic government which establishes new rules and regulations to improve the living standards and other infrastructure of the country, is prevalent in newly industrialized nations.
which type of map is most likely to show current air temperatures across a region? A. topographic B. weather. C. climate. D. physical
Answer:
B
Explanation:
Usually, weather parameters that are used to populate a weather map, are collected by a wide range of weather apparatus such as barometers, rain gauges, thermometers, and etcetera, from weather stations across cities. The use of the latest technologies such as weather Doppler satellites to detect storms is an addition. Weather maps have lines that join areas with same weather parameters such as isotherms for temperatures and isobars for air pressure.
Weather map is a type of map which is most likely to show current air temperatures across a region.
Answer: B. Weather
Explanation:
Weather maps are used to predict temperatures, precipitation, various types of storm warnings, direction of wind and its speed, chance and type of precipitation, accumulation of snow, frost and lots of other aspects associated with weather. The current information about the weather are communicated through weather maps which is updated frequently. They are the world's most regularly consulted thematic maps.
Isobars and isotherms are lines on weather maps which represent patterns of pressure and temperature. These lines indicates the change in pressure and temperature with respect to the space that helps to determine the larger scale weather patterns of a region in the map.
Felicity is taking a test. She has to write about the importance of biomass. Which point should she include in her answer?
Felicity should include the point that environments with the greatest biomass have conditions that optimize photosynthesis and plant growth, leading to high biomass production.
Explanation:One point Felicity should include in her answer about the importance of biomass is that environments with the greatest amount of biomass produce conditions in which photosynthesis, plant growth, and net primary productivity are optimized.
This is because warm and wet climates allow photosynthesis to proceed at a high rate, enzymes to work efficiently, and stomata to remain open without excessive transpiration. These factors lead to a maximal amount of carbon dioxide moving into plants and resulting in high biomass production.
The above-ground biomass also produces important resources such as habitat and food for other living things. Conversely, dry and cold environments have lower photosynthetic rates and less biomass, which can have negative impacts on animal communities due to a decrease in available food.
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Why do historians refer to the dark ages as a period when Europe "slept"?
it's for world civilization.
Europe's progress slowed down while sub-saharan Africa, China, India, and the U.S. flourished
The society in Europe slowed down during the Dark Ages.
Most Pakistanis practice which religion?
A. Hinduism
B.
Islam
C.
Christianity
D. Buddhism
Answer:
b Islam
Explanation:
Answer:
B. Islam
Explanation:
Roughly 97% of Pakistanis are Muslim. Inside Islam, similar to the Christian confidence, there is a division between belief system/religious philosophy. Some stick to the Sunni Islam confidence, which I accept is overwhelmingly the confidence of most Muslims living in Arab nations and the other being, Shia. You catch wind of Sunnis and Shias warring with one another. From what I hear, there is a contrast between these two religions.
Why are most of Earth's deserts located in the subtropical zone?
A. These regions receive less sunlight than the equatorial region.
B. These regions are very warm but less humid than other regions.
C. These regions are very warm but more humid than other regions.
D. These regions receive more sunlight than the equatorial region.
Answer:
B
Explanation:
These regions are very warm but less humid than other regions.
Final answer:
Most of Earth's deserts are located in the subtropical zone due to high-pressure systems causing the lack of precipitation and temperature drops. The rain shadow effect also reduces rainfall in these regions.
Explanation:
Most of Earth's deserts are located in the subtropical zone due to several factors. Firstly, these regions experience high-pressure systems that result in the descending of dry air, causing the lack of precipitation. The dry air doesn't have enough water vapor to prevent the land surface from radiative cooling, leading to drastic temperature drops. Secondly, subtropical deserts are often found on the downwind side of mountain ranges, creating a rain shadow effect that reduces rainfall. These factors contribute to the aridity and dry conditions in subtropical deserts.
these islands are about 740 miles Northeast of the Larsen ice shelf
Answer:
Falkland Islands
Explanation:
The Falkland Islands are an archipelago in the South Atlantic. There's three major islands and hundreds of small islands consisting this archipelago. These islands are located east of Patagonia, and on the northeast of the Larsen Ice Shelf on Antarctica, being only around 740 miles away from it. These islands are a home to lot of sheep and lot of birds, with the human population being relatively small. The islands also have a museum that is dedicated to the explorations that took place in this part of the world. The most famous thing about these islands unfortunately is the war over them between Argentina and the United Kingdom in 1982.
which of the following is true characteristic of the earth but not the moon?a. volcanoes b. plate tectonics c. molten core d. asteroids impacts
Answer: B.
The Moon's Mantle is too cold to move easily, and has no convection and no active tectonic plate motions, due to the Moon's smaller size and colder temperature than the Earth.
Answer:
The characteristic of plate tectonics is only true about the Earth and not the Moon.
Explanation:
The Moon is way too smaller than the Earth and has a comparatively cooler mantle. The size of the Moon limits the possibility of the existence of tectonic plates. Moreover, a cooler mantle doesn't favour the generation of convection currents that are responsible for the tectonic activities. The moonquakes (like that of earthquakes on Earth) are believed to be caused by the Earth's gravitational influence over the moon and the tidal activities on Earth, not by tectonic activities.The ___ projection map is useful for planning air routes.
Answer:
l vre rad n seo a
Explanation:
The Mercator projection map is useful for planning air routes.
The Mercator projection map is particularly useful for planning air routes because it preserves angles and shapes, which is essential for navigation. This means that lines of constant compass bearing (rhumb lines) are straight lines on the Mercator map, which is very useful for pilots who navigate along such lines. However, the Mercator projection does not preserve area or distance, with distortion increasing with distance from the equator. Despite this, its utility for navigation has made it a standard map projection for nautical and aeronautical charts.
Other projection maps, such as the Robinson, Mollweide, or Goode's homolosine projections, do not preserve angles and shapes and are not as useful for air route planning. The Robinson projection, for example, is used for world maps because it shows the entire world in a way that is aesthetically pleasing and has a compromise between area and shape distortion. The Mollweide projection is an equal-area map, which means it preserves area but distorts shapes, making it less useful for navigation purposes. Goode's homolosine projection is an interrupted map projection that is also equal-area, but it is not used for air route planning due to its interruptions and shape distortions.
a shark would not be a good index fossil because
The shark cannot be considered as a good indicator for fossil study. Because the species is known to have survived for a very long period of time.
Explanation:
Fossil studies are done by determining the age of the fossil preserved strata or rock. This is done in order to determine the period of time in which a species found as fossil presence.
Sharks have been known to have survived for a very long duration of time. And, therefore, do not corroborate to a specific period of time. Graptolites and Ammonites are considered as the best index fossils.
The Appalachian mountain range extends north into which of the following Canadian provinces?
a. Quebec
b. Manitoba
c. British Columbia
d. Northwest Territories
Answer:
A. Quebec
Explanation:
the appalachian mountains pass through Nova Scotia, New Brunswick, Edward island, Newfound land, and Quebec
When the acquired culture traits are mixed with the original traits to form a blend of culture traits, this is called _____
Syncretism
Semantics
Semiology
None of the above
Answer:
Syncretism
Explanation:
Let's take a look at the meaning of the different possible answers:
Syncretism : That's the merging of different cultural and religious aspects of different cultures into one, ideally blended in some way. Unlike assimilation that is to eradicate the minority without keeping any aspect of it.
Semantics : Is more a philosophical concept of trying to find the meaning of words mostly, and study the languages, human or computer languages.
Semiology : That's the study of the signs, so that's not related to the question either.
I think syncretism is the answer
Which solid has an infinite number of planes of symmetry?
Answer:
A solid hollow cylinder has an "infinite number of planes of symmetry".
Explanation:
Two or more faces are said to be symmetric when they have the same dimensions and are geometrically identical. When these faces are placed in a setting with 'X', 'Y' and 'Z' axes "perpendicular to each other", they make a plane with three lines of symmetry. A circle has "infinite lines of symmetry". Thus, a cylinder with two openings has an "infinite number" of "planes of symmetry".which area was NOT one of contention between the triple alliance and the triple entente?
North Atlantic
Eastern Europe
Africa
Central Europe
I would say Africa
hope that helped you
africa
is your answer i had this test answer and it was right
Which type of erosion can place a boulder in the middle of a field?
abrasion
deflation
impact
plucking
Answer:
The answer is D. Plucking
Plucking is the erosion that can place a boulder in the middle of a field.
What is the plucking?Plucking is the process by which glaciers carried the small rocks and sediments away with it.
When the ice and glaciers falls apart, the water freeze and expand too much that cracks the rock, which cause the erosion.
The rocks and sediments get freeze at the bottom of the glaciers.
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How are Mexico in the United States similar nations?
Check all that apply.
A. They both share identical cultures on the interior of each country
B. They both work together as economic partners
C. They both have similar military might and culture
D. They both share cultures especially along the border
Answer:
b, d
Explanation:
Answer:
B. They both work together as economic partnersC. They both have similar military might and cultureD. They both share cultures especially along the borderExplanation:
The united states shares borders with that of the Mexico and they have similar landscapes and features that are connected by the Central American passage and show economic partnerships and both have various cultural similarities in terms of the cultural and eating habits along the borders and know for there military powers and culture.The agricultural economy of Brazil plays a part in the nations rural poverty because______.
Most people live the cities
The country has few cash crops
Of land ownership
Of outdated farming methods
The answer is of land ownership.
Answer of land ownership
Explanation:
Can yesterday's weather map help you predict tomorrow's weather? Give a reason for your answer
Yesterday's weather map can be very useful when it comes to predicting the weather for tomorrow, but it also might not be useful at all. The reason why we can not say it for sure would it help or not is because it all depends on the scale of the weather map. If the weather map is only showing us smaller area, then we will not be aware of the surrounding area's weather conditions, and considering how quickly the air masses move, everything can change very quickly. On the other hand, if we have a weather map that presents us much larger area, then we can see the surrounding area and its weather characteristics, so even if the reader of the map is not professional, still it will be able to make a fairly accurate prediction.
please help me NOW NOW
Answer:
I believe it is B
Answer:
b
Explanation: