earth dynamics

Mid-ocean ridges are formed along lines where two plates _______ under the water.

• converge
• come together
• slide
• diverge

Plates of the lithosphere float on the 

• crust
• core
• asthenosphere
• atmosphere

Most volcanoes occur at which type of plate boundary?

• divergent
• convergent with subduction
• transform
• convergent without subduction

Active volcanoes are most likely to form at ____

• transform boundaries
• divergent boundaries
• the center of continents
• convergent oceanic-continental boundaries

Which of the following forms when Earth's crust folds and crumples

• mountains
• ocean trench
• mid-ocean ridge
• subduction zone

What are formed when two continental plates collide?

• Volcanoes
• strike -slip faults
• mountain ranges
• rift valleys

A fracture in the crust of a planet is a 

• mountain
• valley
• fault
• river

Rocks can change when stress acts on them. This change in the shape of a rock is called:

• pressure
• strain
• stress
• force

The force acting on a surface is know as:

• stress
• strain
• pressure
• force

The equilibrium between the continental crust and the denser mantle below it is known as:

• shear
• tension
• isostasy
• compression