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Question 1

Earth’s surface is made of rigid slabs of rock, or plates, that move with respect to each other.

Accepted Answer

theory of plate tectonics

Question 2

The idea that all the continents were once part of a supercontinent

Accepted Answer

Pangaea

Question 3

The circulation of material caused by differences in temperature and density.

Accepted Answer

Convection

Question 4

The circulation of material caused by differences in temperature.

Accepted Answer

Convection

Question 5

Where two plates slide past each other

Accepted Answer

Transform plate boundaries

Question 6

The process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge.

Accepted Answer

seafloor-spreading

Question 7

When the denser tectonic plate sinks below the more buoyant plate.

Accepted Answer

Subduction

Question 8

The cold and rigid outermost rock layer.

Accepted Answer

Lithosphere

Question 9

It is plastic, meaning it slowly flows. It is right underneath the lithosphere.

Accepted Answer

Asthenosphere

Question 10

Mountain ranges in the middle of the oceans.

Accepted Answer

mid-ocean ridges

Question 11

It is plastic, meaning it slowly flows. It is right underneath the lithosphere.

Accepted Answer

Asthenosphere

Question 12

Where two plates collide.

Accepted Answer

convergent plate boundaries

Questions 12