The divergent plate boundaries are the places where the tectonic plates move away from each other. As they move part, which is actually driven by the convection currents in the mantle, they leave a gap between them of very thin and cracked crust. The convection currents manage to push the magma up with easy through this gap. As the magma pushes upward, it reaches the ocean floor, where the temperatures is significantly lower and it quickly cools off and forms new igneous rocks, or rather new crust. Since the magma is constantly rising and constantly making new crust, the new crust is pilling up, forming a mid ocean ridge with intense volcanic activity. Eventually, the rising magma will manage to come out on the surface and create volcanic islands, thus a chain of volcanic islands, which can even result in the formation of new large land of mass.
Volcanoes form at divergent plate boundaries through decompression melting, where the upwelling mantle magma rises through gaps created as tectonic plates move apart. This process creates new crust and can lead to the development of shield volcanoes, as seen in Iceland and mid-ocean ridges.
Formation of Volcanoes at Divergent Boundaries
Volcanoes form at divergent plate boundaries when the Earth's tectonic plates move apart, creating a gap. As the plates separate, magma upwelling from the mantle fills this space and is forced through the cracks, leading to the creation of a new crust. This process is known as decompression melting and is significant along mid-ocean ridges like the Mid-Atlantic Ridge. A notable example of volcanic activity at a divergent boundary is the island of Iceland, where the upwelling magma has created numerous volcanoes.
Shield volcanoes are a common type of volcano that forms along divergent boundaries, as well as over mantle hotspots. Characterized by their mafic (basaltic) magmas, shield volcanoes typically have gentle slopes and non-explosive eruptions, as seen in regions such as Hawaii, which is situated over a hotspot.
Overall, divergent plate boundaries produce significant geological disturbances, including the continual formation of mid-ocean ridges and related volcanic activity. This process is fundamental in shaping the Earth's surface and creating the landscape of the ocean floor.
Mariner 10 was the first to visit what planet in 1974?
Answer: Venus. Hope this helps.
Question: Mariner 10 was the first to visit what planet in 1974?
Answer: Venus
Explanation: The mission was to measure environment, atmosphere, surface, and body's of different planets as it passed
question answered by
(jacemorris04)
Which of the following accurately describe some aspect of gravitational waves?
- the first direct detection of gravitational waves came in 2015
- gravitational waves carry energy away form their sources of emission
- gravitational waves are predicted to travel through space at the speed of light
- the existence of gravitational waves is predicted by Einstein's general theory of relativity
Answer:
- the first direct detection of gravitational waves came in 2015
- gravitational waves are predicted to travel through space at the speed of light
- the existence of gravitational waves is predicted by Einstein's general theory of relativity
Explanation:
The gravitational waves are waves that are produced by the objects, and depending on the mass of the object they can be stronger or weaker in their influence.
These waves have been in the minds of the scientists for more than a century now, with Einstein predicting them in his theory of relativity. The only problem with these waves was that there was no proof of them. The proof finally came in 2015 when these waves were detected from the first time, with two black holes to be thanked for that as they were the source of them.
These waves are predicted to be able to travel with the speed of light through space when they have small amplitudes.
Final answer:
Gravitational waves are ripples in spacetime predicted by Einstein's general theory of relativity, traveling at the speed of light and carrying energy from their source. The first direct detection by LIGO occurred in 2015, confirming Einstein's theory.
Explanation:
Gravitational waves are a fascinating prediction of Albert Einstein's general theory of relativity. These ripples in spacetime are caused by some of the most violent and energetic processes in the universe such as collisions between black holes or neutron stars, or by supernova explosions. Einstein's theory suggests that these waves travel at the speed of light and carry energy away from their source.
The first direct detection of gravitational waves was indeed made in 2015 by the LIGO (Laser Interferometer Gravitational-Wave Observatory) collaboration. This historic event confirmed Einstein's predictions and marked the beginning of a new era in astrophysics, providing a fresh means of observing and understanding the universe.
The lake effect occurs when ____ air mass moves over a ____ body of water.
Answer:
-dry
-large
Explanation:
The lake effect occurs when dry air mass moves over a large body of water. When there's a dry air mass, be it warm or cold, and it moves over some large lake, thus large body of water, it changes its properties. The dry air mass picks up a lot of moisture while passing above the large body of water. As it does that, the air mass becomes wet. As it continues to move, this air mass will eventually come upon a natural barrier which will make it accumulate and go up, at certain area, the water vapor to condensate, and lot of precipitation to occur. Because this process will be happening constantly, the area will be receiving solid amount of precipitation, though the side of the water body from which the dry air mass is coming will be relatively dry.
Punta arenas is the southernmost point of which country
Answer:
Chile
Explanation:
Punta Arenas is located in Chile, and it is the southernmost point of the country.
Punta Arenas is the southernmost point of Chile. Chile is a country located in South America and shares borders with Argentina to the east. Punta Arenas is a city on the Brunswick Peninsula in southern Chile, known for its unique geographical location. Punta Arenas is a city located on the southern tip of Chile, on the Brunswick Peninsula overlooking the Strait of Magellan. As such, it holds the distinction of being the southernmost city in Chile, South America, and one of the southernmost cities in the world. Due to its extreme southern location, Punta Arenas experiences cold and often windy weather conditions, with its climate classified as subpolar oceanic.
18. Which process led to the release of large amounts of carbon dioxide at the end of the Devonian period? Please explain
A. The melting of glaciers
B. The breakup of Pangaea
C. The volcanic activity
D. The extinction of plant life
Answer:
C. The volcanic activity
Explanation:
The Devonian period is the period in which the diversification of life exploded. The fish types increased significantly, while the plants started to develop proper roots and grew much larger. Also, in this period we have the formation of the first soils.
As a period it has been relatively cold, and the main reason for that are the plants because they extracted large amounts of carbon dioxide from the atmosphere. By the end of this period though, large volcanic eruptions occurred, and through them, lot of carbon dioxide was released into the atmosphere, warming up the planet for few degrees and changing the climate.
The volcanic activity released large amounts of carbon dioxide at the end of the Devonian period. Hence, option (C) is correct.
This process significantly impacted the global climate, contributing to mass extinction events.
At the end of the Devonian period, about 350 million years ago, significant geological and biological changes occurred, including increased volcanic activity.Volcanic eruptions released large amounts of carbon dioxide (CO₂) and other gases into the atmosphere.This surge in CO₂ may have reduced the greenhouse effect initially but eventually led to sustained climatic changes.The volcanic activity released CO₂ that would have contributed to atmospheric warming, altering the Earth's climate.In conclusion, volcanic activity played a crucial role in releasing large amounts of carbon dioxide at the end of the Devonian period, impacting the global climate and contributing to the mass extinction events.
What are the two distinct subregions of southeast asia?
The Asian mainland and island arcs and archipelagoes to the east and southeast.
Suppose you measure the parallax angle for a particular star to be 0.1 arcsecond. The distance to this star is
Parallax is the angle formed by the observation lines to a very distant object from two separated points.
The procedure to measure this distance in the case of a star, is based on observing it from two different places far away from each other, and then through trigonometry reach to the following relationship:
[tex]d=\frac{r}{sin(p)}[/tex] (1)
Where:
[tex]d[/tex] is the distance from Earth to the observed star (in Parsecs [tex]1pc=206265AU[/tex])
[tex]r[/tex] is the earth-sun distance that is equivalent to an astronomical unit (1AU=150000000km)
[tex]p[/tex] is the angle of the parallax (in arc seconds [tex] '' [/tex])
Now, the distance to an object (measured in parsecs) is the reciprocal of the parallax (measured in arcseconds).
Then, in its simplified mode, the stellar parallax is given by the following equation:
[tex]d=\frac{1}{p}[/tex] (2)
[tex]d=\frac{1}{0.1''}[/tex]
Finally we have the distance to the star:
[tex]d=10pc[/tex]
What is the name of the peninsula that separates africa from asia
Sinai is a triangle shaped peninsula, located in the Asian continent and politically belongs to Egypt (this is why this country is considered a transcontinental land).
It is important to know that the border between Africa and Asia is not clearly defined. However, the Sinai Peninsula is often considered to be this border.
Although this peninsula divides the African continent from the Asian continent, many authors consider that the true boundary between both continents is the isthmus of Suez.
Which part of Earth contains frozen water?
atmosphere
biosphere
cryosphere
geosphere
The cryosphere is where the Earth contains frozen water
Cryosphere is the part of Earth contains frozen water
Explanation:
Cryosphere is a word for all the combined portions on the surface of planet Earth which consists of water but which is in frozen form. This includes all the surfaces like sea ice, lake ice river, snow cover, glaciers or the ice sheets and all other regions which consist of water in frozen form.
One of most famous cryosphere part on Earth is the northern part of Alaska, the Beaufort sea or the water that is surrounding the regions of arctic and the Antarctica.
Which countries share the longest border in the world?
Answer:
The United States and Canada
Explanation:
Because of the connection between Canada and Alaska, the USA and Canada share the longest border in the world, at 8,893 kilometers long.
Answer:
USA - Canada
Russia - Kazakhstan
Argentina - Chile
Mongolia - China
India- Bangladesh
Explanation:
USA - Canada - 8,893 km
Russia - Kazakhstan - 6,846 km
Argentina - Chile - 5,300 km
Mongolia - China - 4,677 km
India- Bangladesh - 4,053 km
Earthquakes are especially common in which of the following regions?
A.
the Hindu Kush
B.
The Empty Quarter
C.
Iranian Plateau
D.
Strait of Hormuz (its C.
Iranian Plateau. on Edge)
Answer:
I believe the answer is B the empty quarter. hope I helped
The Iranian Plateau is especially earthquake-prone due to its location at the convergence of several tectonic plates, making it part of the earthquake-active Mediterranean-Asiatic Belt.
Explanation:Earthquakes are especially common on the Iranian Plateau, which is situated at the crossroads of multiple tectonic plates, leading to high seismic activity. This region is a part of the Mediterranean-Asiatic Belt, where approximately 15 percent of the world's earthquakes occur due to the convergence of the Indian Plate and the Eurasian Plate. Like the areas around the Pacific Ring of Fire, where a vast majority of earthquakes are concentrated, the Iranian Plateau is prone to frequent and sometimes powerful earthquakes due to its tectonic setting.
What type of crust is found under the continents?
Answer:
continental crust. I hope this helped
Continental crust is made up of many different types of rocks, with the average composition being granite. It is thick and has a relatively low density, allowing it to rise higher on the mantle compared to the denser oceanic crust. The basins formed by the oceanic crust sinking into the mantle are filled with water, creating the Earth's oceans.
Explanation:Continental crust is made up of many different types of igneous, metamorphic, and sedimentary rocks. The average composition is granite, which is much less dense than the mafic rocks of the oceanic crust. Because it is thick and has relatively low density, continental crust rises higher on the mantle than oceanic crust, which sinks into the mantle to form basins. When filled with water, these basins form the planet's oceans.
What are some different phases of climate the earth has gone through?
Answer:
- Warm and wet
- Glaciation
- Inter-glacial
Explanation:
The climate on Earth has constantly been changing and still continues to do so in the present. There has been different climate phases. Some periods of the geological past have been very warm and wet. The climate has been tropical wet, with high temperatures and high amounts of precipitation. There have been periods that have been much colder, with ice caps expanding much further than the poles, and apart from the lower temperatures, the climate has also been much drier. And there are the inter-glacial phases. In this phases the climate seems to be more diverse, arranged roughly by latitude, it is more moderate in general when compared with the other two extremes.
What major mountain range runs north to south in the middle of peru?
The Andes mountain range is located in the western part of South America, contouring the Pacific Ocean coast and part of the Caribbean Sea.
The Andes is the longest mountain range on Earth with the record of having the highest volcanoes on the planet.
Its surface is so extensive that it covers seven countries: Colombia, Venezuela, Ecuador, Peru (running north to south in the middle of its territory), Bolivia, Argentina and Chile.
What is the largest borough of new york city?
With a land area of 109 square miles, Queens is by far the largest of the five boroughs. (Its population of 2.3 million is second to Brooklyn by 300,000
9. Why do solar cells need an inverter? Please explain.
A. Their energy output is alternating current.
B. They need a way to store energy for cloudy days.
C. They need a way to share their excess energy with the electric company.
D. Their energy output is direct current.
The energy output is in form of alternating current which gets converted from direct current through inverter.
Answer: Option A
Explanation:
When solar collectors collect sunlight and convert it into energy, they are sent to a inverter that can direct the energy and converts it into alternating energy. Then you can power your devices and electronic equipment by solar cells.
Converting the constant power of solar modules into alternating current is the main function of the inverter. Various electrical components are connected to the circuit that can assist in conversion. Basically, the performance of a solar system is used to power AC consumers.
The correct answer is A, that is their energy output is alternating current
Solar captures sunlight and converts it into energy and the converted energy is moved into an inverter. The reason why the energy is sent to an inverter is to reconvert the energy into alternating energy.
The alternating energy can then be used to power your appliances. That is, you can power your office appliances or house equipment.
Further ExplanationInverters are used to convert direct current into alternating current (AC) power. It also helps in regulating the solar voltage to identify the maximum power that the modules can operate.
However, there are four types of inverter and these include
Stand-alone inverters: they are used mainly in isolated systems whereby the inverter gets its direct current energy from batteries. Grid-tie inverters are types of inverters built to automatically shut down in case of loss of utility supply. It is designed for safety reasons. Battery back-up inverters: These types of inverters are built to receive energy from the battery. Battery back-up inverters can supply AC energy to loads in case of a utility outage Intelligent hybrid inverters: these types of inverters are used to manage a photovoltaic array. They are versatile and can as well be used for grid-tie applications.LEARN MORE:
Why do solar cells need an inverter? https://brainly.com/question/12751251Why do solar cells need an inverter? https://brainly.com/question/12576588KEYWORDS:
solar cellsalternating currentdirect currentinvertersappliancesIn what state would you find the tallest mountain east of the mississippi river?
Answer:
Mount Mitchell
Explanation:
What parts of texas were affected by the dust bowl
The part of Texas that was affected by the Dust Bowl was the North West
the answer to your question is the north west
PLEASE HELP
Conflict between _____________ and _____________ led to the division of Ireland into two countries.
a.
Irish Protestants and English Catholics
c.
Irish Protestants and Irish Catholics
b.
Irish Catholics and French Protestants
d.
Irish Catholics and English Protestants
Answer:
D. Irish Catholics and English Protestants
Explanation:
Answer:
D
Explanation:
Identify the true statement about drainage divides. A drainage divide is a ridge that separates one watershed from another. Precipitation that falls on the west side of the continental divide flows to the Gulf of Mexico and the Atlantic Ocean. The divide that runs along the crest of the Appalachians separates the Atlantic Ocean drainage from the Arctic Ocean drainage. The ultimate base level for streams on the east side of the continental divide is the Pacific Ocean.
Answer:
A drainage divide is a ridge that separates one watershed from another
Explanation:
A drainage divide is the natural feature that is dividing the watersheds, or rather it is a ridge of a mountain or hill that is dividing the waters. The drainage divides determine where the water will go, on which side, in which streams and rivers. Some of them are larger, some are smaller, but they all do the same job. Where the waters from a certain watershed will end up though depends on the topography of the terrain, which can make them the waters move in any direction, or better said from higher to lower places. This occasionally gives weird paths of the waters from some watershed, as the watershed can be very close to a big body of water, but the topography moves it away from it, and it ends up in a body of water hundreds or even thousands km away.
A drainage divide is a ridge that separates one watershed from another, determining where precipitation will drain. The other statements in the question about watersheds and drainage divides are inaccurate.
Explanation:The true statement about drainage divides is that a drainage divide is a ridge that separates one watershed from another. A drainage divide, or watershed divide, is a geographical boundary that determines into which body of water precipitation will drain. The segregation happens because the water will flow towards the lower point of elevation.
Regarding the other statements, the one about precipitation falling on the west side of the continental divide flowing to the Gulf of Mexico and the Atlantic Ocean is not accurate. Precipitation that falls on the west side of the continental divide flows towards the Pacific Ocean. Similarly, the ultimate base level for streams on the east side of the continental divide is the Atlantic Ocean, not the Pacific Ocean.
Finally, the divide that runs along the crest of the Appalachians does not separate the Atlantic Ocean drainage from the Arctic Ocean drainage. Instead, it separates watersheds that drain into the Atlantic Ocean and the Gulf of Mexico.
Learn more about Drainage Divides here:https://brainly.com/question/39052864
#SPJ3
What type of boundary is the mid ocean ridge?
Answer:
divergent boundary is the mid ocean ridge
When wind slows down, it deposits sediment. What feature is created by the deposition of loosely packed, mineral-rich soil?
A. moraine
B. beach
C. loess
D. sand dune
The answer is:
C. loess
The feature that is created by deposition of the loosely packed and mineral-rich soil is Loess.
Explanation:Loess is a loosely packed soil deposition due to blown wind of sediment rocks. The geography of loess is in between soil and clay. It is finer in texture than soil but has the coarse structure than the clay. This loess contains certain clay portions in order to hold the soil particles properly.
It can be mostly seen in Great Plains of North America, northern china, and other places around the world.
Which one of the following can the transit method tell us about a planet?
-its mass
-its size
-the eccentricity of its orbit
The transit method allows detecting distant planets by measuring the attenuation of the brightness of a star when a planet passes between it and the Earth.
This is done based on a phenomenon in which a body (a planet in this case) passes in front of a larger one (the star), blocking (eclipsing) its vision to some extent.
So, this transit reflects the ratio of the size of the star and size of the planet. Hence, the larger the planet, more noticeable the eclipsing effect.
This is how the size of the star can be determined through its spectrum photometrically, although it does not give information about its mass.
Final answer:
The transit method can tell us about the size of a planet. When used with the Doppler method, it can also help determine the planet's mass and density.
Explanation:
The transit method primarily allows us to determine the size of an exoplanet. When a planet passes in front of its parent star as seen from Earth, it causes a periodic dimming of the star's light. By analyzing how much the light drops and for how long, astronomers can calculate the planet's size. The transit method does not directly provide information about the planet's mass or the eccentricity of its orbit. However, when combined with the Doppler method, which measures changes in the star's spectrum due to the gravitational pull of an orbiting planet, both the size and mass can be determined. This combination offers a powerful tool for characterizing exoplanets, such as helping to gauge their density and composition, as was the case with HD 209458b, the first detected transiting planet, which confirmed it as a gas giant.
Which country has won the most winter olympic medals?
norway with 368 medals won
Norway has won the most Winter Olympic medals, consistently performing well in skiing and biathlon events throughout the Games.
Norway's athletes excel in cross-country skiing, alpine skiing, and ski jumping, which are central to their Winter Olympic achievements. The country’s emphasis on winter sports is deeply rooted in its culture, with a strong infrastructure supporting young athletes and a high level of expertise in winter sports training.
This focus has led to consistent success over the years, culminating in Norway holding the record for the highest number of Winter Olympic medals. Their dominance is a reflection of both their dedication to the sports and their competitive spirit on the international stage.
which is true about Africa?
a. apartheid is the official policy of Africa
b. Europe controls most of African nations today
Africa is governed by the IMF
d. the Sahara desert forms a cultural barrier in Africa
Answer:
d. the Sahara desert forms a cultural barrier in Africa
Explanation:
The vast Sahara certainly plays the role of a cultural barrier, blocking the North-South exchanges on that huge continent.
a. apartheid is the official policy of Africa : today? False, that ended in 1994.
b. Europe controls most of African nations today. No, at least not politically. China is a bigger player in Africa now than most European countries with massive investments. Most European colonies got their independence 50-60 years ago.
c. Africa is governed by the IMF IMF is an economic institution, it doesn't control or rule any country.
Which country in europe has the longest coastline?
Answer:
Norway
Explanation:
It is the second-longest coastlinein the entire world, at 58,113 kilometers long.
a) Norway in Europe has the longest coastline.
Definition of Coastline: The coastline is the outline of a country's land along the ocean or sea. It includes any areas where land meets water, such as beaches, cliffs, and bays.
Comparison of Countries:
Norway: Norway has an extensive coastline owing to its unique geography, which includes numerous fjords and islands. The total length of Norway's coastline is approximately 38,351 miles (61,000 km) when including its islands.
Spain: Spain's coastline is known for its beautiful beaches and stretches approximately 4,964 miles (8,000 km).
Greece: Greece also has a long coastline, around 8,500 miles (13,676 km) if you include its many islands, but it is not longer than Norway's.
Italy: Italy's coastline is about 4,723 miles (7,600 km), making it shorter than Norway's as well.
Complete question-
Which country in Europe has the longest coastline?
a) Norway
b) Spain
c) Greece
d) Italy
What color are the hottest stars in space
The hottest stars in space are blue.
Answer:
Stars with higher temperatures or the hottest stars in space are 'Blue'
Explanation:
Hope this helps!
What building is found at 1600 pennsylvania avenue
Answer:
The White House
The sea labeled with the number 7 on the map above is the __________ Sea.
A.
Baltic Sea
B.
Bering Sea
C.
Sea of Japan
D.
Sea of Okhotsk
Answer:
B. bearing sea
Explanation:
Answer:
B, Bearing Sea
Explanation:
Which of the following is a likely explanation for why there is limestone near the summit of Mount Everest, the tallest mountain on Earth?
The limestone forms during metamorphism related to mountain building.
The limestone was formed under the pressure of mountain glacial ice.
The limestone found at the top of Mount Everest was formed in an ocean.
The limestone is the result of an igneous intrusion.
Answer:
The limestone found at the top of Mount Everest was formed in an ocean
Explanation:
The Himalayan Mountain Range, thus its highest peak Mount Everest as well, have been formed as a result of the collision between the Indian and Eurasian tectonic plates. The Indian plate, once it separated from Gondwanaland, started to move toward Eurasia. As it was getting closer, the plates started to push against each other. Since the boundary has been in the ocean, the ocean floor started to lift up first because of the immense pressure. As the plates continued to push against each other, the surrounding area was gradually pushed up, so what was once an ocean floor and lowlands was slowly becoming a mountain range. This resulted in limestone rocks that were formed in the ocean to be moved up for several kilometers and to become part of the highest mountain range in the world, providing us with another good proof of the continental drift theory.
Final answer:
Limestone near the summit of Mount Everest indicates that the mountain was once under an ancient ocean, and the rock was upthrust due to the collision of tectonic plates.
Explanation:
The presence of limestone at the summit of Mount Everest is evidence of the mountain's geological past. The most likely explanation for this limestone is that it was formed in an ancient ocean. Over millions of years, oceanic sediments containing the remains of marine organisms were lithified into limestone. Later, due to the collision of the Indian Plate with the Eurasian Plate, these sedimentary rocks were thrust upward to form the Himalaya mountain range. Consequently, what was once the bottom of the sea became the highest peak on Earth. This geological process is an example of plate tectonics at work and is supported by the discovery of marine fossils at such high altitudes.