Describe in detail what causes seafloor spreading. Use as many key terms as possible.

(Key terms: plate tectonics, plate boundaries, convergent boundary, transform boundary, divergent boundary, convection, mantle, magma, oceanic crust, continental crust, density, inner core, outer core.)

Answers

Answer 1

Answer:

Seafloor spreading results from intense activity in the upper mantle which cracks the crust and pushes it away.

Explanation:

Seafloor spreading is a process that was first noticed by Alfred Wegener and was used by him in his theory of plate tectonics. There are three types of plate boundaries; convergent boundary, transform boundary, and divergent boundary. The last one is the one where seafloor spreading occurs.

The convection currents in the mantle are the process that breaks up the crust and move the tectonic plates, and when there is higher activity than usual at some place it results in break up the crust of an already existing tectonic plate.  Basically, magma rises at a higher rate and pushes through the crust, in this case, the oceanic crust, and it manages to gradually break through it and come out on the seafloor. By doing so, the magma and the pressure from below are pushing the two now divided parts of the plate. As the space between the two different parts becomes larger and large the density of the crust becomes smaller and smaller so more and more magma rises through. The magma quickly solidifies on the ocean floor and piles up, thus creating an underwater mountain range known as a mid-ocean ridge.


Related Questions

What is the capital of Punjab​

Answers

Answer:

Chandigarh!

Explanation:

Ya that’s right Chandigarh

The most common form of electromagnetic energy is visible what

Answers

Answer:

visible light

Explanation:

everything you can see

Homes in Nunavut are often built on platforms to allow air to flow between the house and the frozen ground. It this is not done, the ground may melt and the house will sink into it.

Answers

Answer:

The statement is correct.

Explanation:

Nunavut is Canadian territory. It is located in the northern part of the country. It is a territory that is slightly less than half on the mainland, and slightly more than half being composed of islands. The majority of this territory either lies in the Arctic Ocean or has a coastline to it, and a big portion of the territory is in the Arctic circle.

Such location means that Nunavut has a very cold climate, dominated by tundra. The ground is covered with ice for most of the year, and in the short period when the ice melts the soil is muddy and oversaturated with water, thus it is not stable at all. The people had to adapt to these conditions, so they are often building their homes on platforms, thus isolating the house/dwelling from the ice and soil. This is very useful for the stability of the homes, but it causes problems with the heating of them because the air that flows below the house cools it furthermore.

who mapped australias great barrier reef?

Answers

Answer:

Captain James Cook

Explanation:

European exploration of the reef began in 1770, when the British explorer Captain James Cook ran his ship aground on it. The work of charting channels and passages through the maze of reefs, begun by Cook, continued during the 19th century.

15. An IP address is designated by what?
Letters
O Symbols
w
O Numbers
Names

Answers

I am not certain but I think it is numbers

vote for popular song:

Dynamite or Savage Love

Answers

light it up like. dynamite

Explanation:

savage love aka Jason deurolo was a clout chaser .... anyways stream blueberry eyes instead ... borahae

Answer:

savage love all the way!!!!!!

Explanation:

Give an example of how mammals were able to differentiate in the Cenozoic Era.

Answers

Answer:

During the Cenozoic Era, Australia separated, and marsupials evolved. ... For most of the Mesozoic Era, gymnosperms were the dominant plant form. Angiosperms began to appear during the Cretaceous Period.

Explanation:

During the Cenozoic Era, Australia isolated, and marsupials advanced. For the majority of the Mesozoic Era, gymnosperms were the prevailing plant structure.

What is Cenozoic Era?

The Cenozoic is Earth's ongoing land era, addressing the last 66 million years of Earth's set of experiences.

It is described by the strength of warm blooded creatures, birds and blossoming plants, a cooling and drying environment, and the ongoing design of mainland.

It is the most recent of three land eras since complex life advanced, went before by the Mesozoic and Paleozoic. It began with the Cretaceous-Paleogene eradication occasion, when numerous species, including the non-avian dinosaurs, became wiped out in an occasion credited by most specialists to the effect of an enormous space rock or other divine body.

The Cenozoic is otherwise called the Time of Well evolved creatures on the grounds that the earthbound creatures that overwhelmed the two halves of the globe were warm blooded animals.

Therefore Current placental warm blooded animals started during this time.

Learn more about Cenozoic era here:

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What is the main incentive for using a command economy?

Answers

Answer:

Economic equality

Explanation:

Select the correct answer. South America is located entirely within which hemisphere? A. Northern Hemisphere B. Southern Hemisphere C. Western Hemisphere D. Eastern Hemisphere

Answers

Southern Hemisphere

A large land area that is part of a continent is a ___

A) monsoon
B) subcontinent
C) Peninsula

Answers

Answer:

Subcontinent

Explanation:

A monsoon is a storm and a peninsula is an area of land that sticks out into water.

most of the natural vegetation has been cleared for grazing what was the natural vegetation​

Answers

Answer: Natural vegetation refers to a plant community, which has grown naturally without human aid and has been left undisturbed by humans for a long time.

Explanation:

Answer:

Explanation:

forest, grassland, scrubs etc.

As __________ increases in the atmosphere, global temperatures also increase.

Answers

Answer:

1. carbon dioxide-I would say this one

2. methane

Explanation:

It is one of these, technically both, but I think carbon dioxide is the best answer for you.

As Carbon dioxide increases in the atmosphere, global temperatures also increase.

What are the causes of the increase in temperature?

The increase in the temperature of the planet is mostly caused by greenhouse gases that are emitted from day-to-day use which disturbs the ecological balance of the planet and results in an increase in temperature.

Deforestation which means cutting trees is also a severe cause of temperature increase as plants absorb the carbon dioxide and produce oxygen but due to deforestation, this process is disturbed.

An increase in the temperature disturbs the ecosystem as higher temperatures lead to the extinction of species due to extremely dry regions which are considered difficult to survive.

Increased ground-level ozone-polluted air, which is produced when air pollution from industries, cars, and other sources reacts with sunshine and heat, makes air pollution much worse as temperatures rise.

Learn more about Rising Temperature, here:

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How does distance decay affect cultural diffusion?

Answers

Explanation:

distance decay is a geographical term which describes the effect or distance on cultural or spatial interactions

what is a society with different cultural groups that have unique identities within the cultures called?

Answers

Answer:

A melting pot

Explanation:

Answer:

Do you mean cultural diversity

Or  Cultural identity?

Explanation:Cultural identity is like religion or ethnicity. In the United States we have so many  cultural diversities But it is called the melting pot which means many cultures came together in one place and they coexist to which refers to cultural diversity.

Where is the Northeast Plain located?
A.
China
B.
Japan
C.
Korea
D.
Mongolia

Answers

Answer:

A... China

Explanation:

Answer:

a took the test

Explanation:

lapay bantigue was originated in the island of?​

Answers

Answer:

Masbate City

Explanation:

Lapay bantigue is a type of dance which mimics the seagulls which are found in large amounts on the Phillipine island known as Masbate City.

Lapay bantigue was originated in the island of Masbate City and this dance which comprises of unique movements is often used in various ceremonies and occasions and has become a traditional dance of the people of the Island.

Lapay bantigue is a local dance that originated in the island of:

Bantigue, Masbate

The lapay bantigue is a local dance which has its origin from the graceful way birds move when they are in flight. This type of dance is native to the Barangay people in Masbate, the Philippines.

As a result of this, and because of cultural diffusion, there is a movement across other cultures as they are learning the dance steps and using them to make beautiful dances too.

Therefore, the origin of the lapay bantigue dance is Bantigue, Masbate in the Philippines.

Read more here:

https://brainly.com/question/24021896

after 2004 polish exports increased when ​

Answers

After 2004, Polish exports increased after the country entered the European Union.

Poland, as multiple other countries of Central and Eastern Europe, has communist past. When the communism fell, Poland struggled for some time, as the country needed to change a lot in its functioning, especially the economy and the development of relations with other countries. Despite the country doing everything right, it was still not able to reach its potential because of the limitations.
This all changed when the country entered the European Union in 2004. The borders opened up, so Poland had access without any limitations with the other countries of the EU, and through it with lot of markets across the world because of the EU's trading agreements. Poland used the opportunity, so its exports increased significantly, and since there was larger market and demand, the Polish companies were producing more as well, skyrocketing the economy.
Countries that experienced similar development as Poland are:
Hungary
Lithuania
Latvia
Estonia
Czechia

what is genetic variation?
A. Each individual in a population has slightly different genes.
B. Some individuals in a population have more genes than others.
C. Each population of a species has slightly different genes.
D. Some populations of a species have more genes than others.

Answers

Answer choice A.

genetic variation is the result of random mating creates unique offspring.

What are Angles, Lines, and Transversals?

Answers

a transversal is a line that intersects two or more lines. When two or more lines are cut by a transversal, the angles which occupy the same relative position are called corresponding angles

(hope this helps)

A farmer who has grown corn for the past five years notices in the sixth year that his harvest is significantly smaller, despite an increase in labor on the farm. The following year, the harvest continues its decline. Which of the following explanations most plausibly accounts for the reduction in corn yield? A. soil degradation B. desalinization C. better irrigation D. terracing Reset Next

Answers

I would say A. soil degradation

Answer:

A.

Explanation:

Growing a different crop (crop rotation) will prevent the soil from degrading, which is what happened to the farmer.

Of all the potential causes of destruction created by hurricanes, storm surges produce __________. A. the greatest threat to loss of life B. no real threat to people or cities C. the only valid threat to structural damage D. the smallest threat damages faced on land

Answers

Answer:

C. the only valid threat to structural damage

Explanation:

A storm surge is the rise in sea level that occurs when hurricanes or typhoons happens in a given area. This rise in sea level leads to the water to flood the given area when it comes onshore, thereby leading to the damage of structures found within the area.

For example, all the building found within an area where storm surge occurs would be exposed to the threat of structural damage.

Answer:

other guy is correct it is c.

Explanation:

got it right on the unit test review edge 2021

1. Explain what is meant by the 'ring of fire' (2 marks)

2. Explain why earthquakes occur along conservative plate boundaries but there is no
volcanic activity. (4 marks)

3. Using a diagram explain what happens at a
divergent plate boundary. (4 marks)​

Answers

Answer:

I can answer number 2.

Explanation:

There is no volcanic activity associated with conservative plates, though earthquakes can often occur. 

which type of soil is required for growing cotton ​

Answers

Answer:

sandy loam soils

Explanation:

High fertile soil since cotton is a heavy feeder, they rely on easily absorbed nutrients to grow. They need plenty of sunlight. It depends on location. Soil needs to be kind of damp but not too wet

I NEED HELP!!
Stretching from Canada to Mexico, the are the longest mountain range in the United States. The Rio Grande, Missouri, and Mississippi are major in the United States. The United States is bordered by the to its east.

Answers

Answer:

the longest mountain range in the US is the Rocky Mountains

Explanation:

Answer:

The first one would be Rockies

The second one would be Rivers

The third one would be Atlantic ocean

Explanation:

You are visiting family in Tennessee. One morning, the weather is warm and humid. Which type of air mass is most likely causing this weather?

A. Continental Tropical
B. Continental Polar
C. Maritime Tropical
D. Maritime Polar

Answers

Answer:

C

Explanation:

Answer:

C)-Maritime Tropical

Explanation:

i got it right :D

There are some areas of the world where more than two plates react in complex ways. One example of this is near Spain where three plates are moving together. What do we call these areas?

Answers

I think the term is “plate boundary”

plzz help

big bang theory

Answers

The universe is expanding.

The universe began in a hot dense state.

Which type of plate boundaries generate the most volcanoes? Why?

Answers

Answer:

constructive plate boundaries cause volcanoes.

Explanation:

A state that has no access to the sea because it is surrounded by other states,

A. perforated

B. prorupted

C. elongated

D. landlocked

Answers

I think it’s B Prorupted
D, since it is surrounded by land with no access to sea. “Landlocked”

India is often characterized as a distinctive cultural region based on a vast majority of the people being followers of which world religion? A. Islam B. Hinduism C. Buddhism D. Christianity

Answers

Answer:

B)

Explanation:

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