1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Umnica [9.8K]
3 years ago
12

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

Geography
1 answer:
bixtya [17]3 years ago
8 0

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.

You might be interested in
Which of these is a supporting service - a service on which ecosystems depend
vesna_86 [32]

A. Providing building materials

B. Raising livestock

C. Recycling nutrients

D. Providing national parks

Answer:

Recycling Nutrients

Explanation:

Supporting services are referred to as ecosystem services whose requirements are of high importance to the production of all other ecosystem services.

There are lots of ways which human benefits from nature. These benefits can be referred to as ecosystem.

Of option a to d, only option c fits the description above.

Nutrient cycle or recycling nutrients in an ecosystem is very important because it links all organisms whether living or not, together.

It links the living organisms with living organisms, living organisms with the non-living organisms and non-living organisms with non-living organisms.

7 0
3 years ago
What factors help to explain the high rate of emigration from some Caribbean islands?
lutik1710 [3]
<span>A greater demand for labour in developed markets caused large amounts of migration from the Caribbean Islands. A chance to have constant steady income elsewhere created a desire to leave in order to support family when jobs were scarce in their own Islands.</span>
3 0
3 years ago
Benefits of living in the country
Art [367]
Lower cost of living
Healthier live
Cleaner environment
Less crime and gangsters
Great place to live in if you like walking and running
Friendlier community
You would have more space to do whatever u want
8 0
3 years ago
Where is brussels located
dalvyx [7]
Brussels is the capital of Belgium, and Belgium is a country in North-Western continental Europe (only "north" if you don't take into account the Scandinavian Peninsula). It's located between Germany and France.

Within Belgium, Brussels is located in the middle of the country.

8 0
3 years ago
What is the predominant climate of South America
PolarNik [594]

South America is a continent that has a variety of climates, but the predominant one is the tropical climate.

The tropical climates are climates that appear on and in close proximity tot he Equator, and they are not monotone, but instead differ from one another. From the tropical climates that dominate the South American continent, the most widespread are the tropical rainforest and the tropical grasslands, which account for most of the tropical climates, with the tropical semiarid and tropical arid climates occupying much smaller areas on the continent, mostly alongside the Pacific coastline.

The Amazon rainforest is the trademark of South America, and it is the biggest tropical rainforest in the world, occupying huge portion of the northern half of the continent, with the tropical grasslands occupying large ares both north and south of the Amazon.

6 0
4 years ago
Other questions:
  • Platinum can be found in which of the following formations
    14·2 answers
  • Least 5landform of a desert​
    9·1 answer
  • Identify the characteristics of a unitary system, a federal system, and a confederate system. Provide at least one example or a
    9·1 answer
  • The Canadians who criticized the Free Trade Agreement (FTA) were unhappy about _____.
    9·1 answer
  • SPOIL
    14·1 answer
  • What factors make Central Asia isolated?
    11·1 answer
  • The Earth's [CHOICE 1] sits on top of the [CHOICE 2] is divided into several tectonic plates. Due to the [CHOICE 3] of Earth's m
    11·1 answer
  • What ocean would you be in if your plane crash landed at 30° south latitude by 120° west longitude?​
    12·1 answer
  • How did the physical geography of greece effect their civilization?
    11·1 answer
  • How can quality-of-life issues influence fertility and mortality rates?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!