Rock and Water Cycle Review

The density is the highest in Earth's

• Crust

• Upper Mantle

• Lower Mantle

• Core

Earth's core is mainly composed of

• Iron and Aluminum

• Silicon and Hydrogen

• Iron and Nickel

• Silicon and Oxygen

A boundary where two tectonic plates come together or collide is called

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• Transfer Boundary

What is the primary cause of volcanoes and earthquakes?

• crustal plate movement

• Earth's gravitational force

• higher than usual tides

• solar magnetic storms

Which of these statements about Earth's crust is TRUE?

• A. It is a layer of solid rock that remains the same throughout time.

• B. It includes the continents, but not the ocean floor.

• C. It is a changing, moving surface with the same thickness everywhere.

• D. It is a system of large masses called plates that slowly move together or apart.

What is the composition of layer 4?

• molten iron

• granitic rock

• solid iron

If we compare the temperature and pressure of the Earth's mantle to the core, what differences can we expect as we move downward into the Earth?

• Both the temperature and pressure increase.

• Both the temperature and pressure decrease.

• The temperature decreases and the pressure increases.

• The temperature increases and the pressure decreases.

Which plate tectonic diagram best illustrates the current position of the continents?

• A

• B

• C

• D

The map below shows what kind of plate boundary?

• Transform

• Convergent

• Divergent

• All of the above

Layer A in the diagram has the lowest temperature and pressure. What part of the Earth is labeled layer A?

• The atmosphere

• The crust

• The mantle

• The core