Earth Science Unit Test

Question

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Question
Why do convergent boundaries cause the formation of volcanoes? (1 point)
Responses

When two plates collide, one goes under the other. This creates an area of high pressure, which causes mantle rock to melt into magma and shoot out onto the crust.
When two plates collide, one goes under the other. This creates an area of high pressure, which causes mantle rock to melt into magma and shoot out onto the crust.

When two plates collide, part of one plate is broken. This creates an area where the mantle is exposed to the air and magma shoots out onto the crust.
When two plates collide, part of one plate is broken. This creates an area where the mantle is exposed to the air and magma shoots out onto the crust.

When two plates move away from each other, they create a crack in the crust, or a fault. This fault can go all the way to the mantle, causing magma to shoot out onto the crust.
When two plates move away from each other, they create a crack in the crust, or a fault. This fault can go all the way to the mantle, causing magma to shoot out onto the crust.

When two plates move away from each other, the crust gets thinner. This allows magma to shoot out onto the surface of the crust and harden.
When two plates move away from each other, the crust gets thinner. This allows magma to shoot out onto the surface of the crust and harden.

Answer 1

When two plates collide, one goes under the other. This creates an area of high pressure, which causes mantle rock to melt into magma and shoot out onto the crust.