Ch 8 - Earth Dynamics

Match the following

• shear

• parallel forces acting in opposite directions

• tension

• squeezing force that acts from opposite sides

• compression

• a pulling apart force

What is strain?

• any force acting on rocks

• a change in a rock's shape due to stress

• a balance between the crust and the mantle

What can bring deeply buried rocks to Earth's surface?

• uplift

• subduction

• compaction

What is subsidence?

• a horizontal movement of the crust

• a vertical upward movement of the crust

• a vertical downward movement of the crust

Earth's mountains float in balance on top of the mantle as the result of

• strain

• isostasy

• subduction

If the glaciers on Greeland grew larger, the crust under the ice would

• uplift

• subside

• subduct

Which term is a rock cycle process caused by plate motion?

• erosion

• weathering

• subduction

A mid-ocean ridge forms when __ acts on seafloor rocks

• compression

• tension

• shear

Transform faults form when __ acts on rocks

• tension

• compression

• shear

High mountain ranges can form on land where two plates __

• converge

• diverge

• transform