Midterm Review 24 - 25

Front

What formations happen at ocean to ocean subduction zones?

Back

Deep oceanic trenches.

Front

What causes the oceanic crust to be pushed under continental crust?

Back

Oceanic crust is more dense than continental crust.

Front

What is the main process that occurs at the Mid Atlantic Ridge?

Back

Seafloor spreading.

Front

Which part of Earth’s structure is composed of a solid mixture of nickel and iron?

Back

Inner core.

Front

How does radioactive decay affect motion within Earth?

Back

Density of molten rock decreases as it's heated, resulting in the rock being pushed above by material with a greater density.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and is forced into the mantle.

Front

What is the difference between oceanic and continental crust?

Back

Oceanic crust is denser and thinner than continental crust.

Front

What is the significance of the Mid Atlantic Ridge?

Back

It is a divergent boundary where new oceanic crust is formed.

Front

What are tectonic plates?

Back

Large slabs of Earth's lithosphere that move and interact at their boundaries.

Front

What is the role of convection currents in the mantle?

Back

They drive the movement of tectonic plates.