The correct answer is - As the hot magma exists the MOR, it shoots up higher than the surrounding crust.
The mid-ocean ridges are linear mountain chains on the ocean floor. They appear on places where there are divergent boundaries, meaning where two or more plates are moving away from one another.
As the plates move away, they leave thinner crust and gaps behind them, so the high pressure from the mantle manages to push upward the magma with ease. As the magma pushes upward it manages to move up the ocean floor as well. The magma cools of very quickly, thus creating new crust in no time. This new crust sits higher than the older one because the magma manages to push upward the ocean floor itself. Since the magma is continuously coming up and creates more and more new crust, it also gets out much higher because it makes a mountain of very hard igneous rocks around the source, thus constantly coming above the layers formed before.
Answer:
Deltas are wetlands that form as rivers empty their water and sediment into another body of water. ... Deltas are wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river. Although very uncommon, deltas can also empty into land.
Explanation:
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Answer:
1. earliest Civilizations began on this continent - Africa
2. continent which has the Amazon River - South America
3. continent surrounding the South Pole - Antarctica
4. areas with warmer climates - low latitudes
5. continent in the Eastern Hemisphere which has mostly young nations - Asia
6. small continent in the Southern and Eastern Hemispheres - Australia
7. the poles are in these - High Latitudes
Explanation:
First civilization as we know are created in Africa and later spread to Asia and Europe.
Amazon flows through South America, with its largest part through Brazil.
Antarctica is the the continent on the South, that totally surrounds the South Pole.
Of course, all the area on the low latitudes usually have warmer climate, such as central Africa or Asia.
Median age in Asia is around 32 years.
Australia is the smallest continent.
High latitudes includes areas around North and South Pole.
Answer:
Africans passed down their history orally instead of writing it down.
Explanation:
Many African tribes never developed a system of writing on their own, so it was passed down orally.
Answer:
convergence between a continental plate and an oceanic plate
Explanation:
The Andean Mountain Range has been formed because of volcanic activity. This has happened because of a convergent plate boundary between two plates.
More specifically, the convergent plate boundary is between the continental South American plate and the oceanic Nazca plate. The Nazca plate is lower, denser, heavier, and it is moving below the South American plate, creating a subduction zone.
Where the boundary is between the two plates, the mantle manages to push through magma upwards through the cracks in the crust. This magma managed to get to the surface, lift up the land and create volcanoes, creating a continental volcanic arc parallel to the plate boundary, over time becoming the enormous Andean Mountain Range.
