Environmental Science Unit 2 Review

Which of the following layers is the thinnest, outermost part of the Earth?

• Mantle

• Crust

• Outer Core

• Inner Core

Which of the following layers is the thickest, middle part of the Earth?

• Mantle

• Crust

• Outer Core

• Inner Core

What is the primary elemental composition of Earth’s inner core?

• Silicates

• Oxygen and nitrogen

• Solid iron and nickel

• Molten rock

Sedimentary rock forms when:

• Sediment is compacted and cemented together.

• Magma cools and solidifies.

• Heat and pressure change existing rock.

• Water erodes rock material.

Metamorphic rock forms when:

• Sediment is compacted and cemented together.

• Magma cools and solidifies.

• Heat and pressure change existing rock.

• Water erodes rock material.

Igneous rock forms when:

• Sediment is compacted and cemented together.

• Magma cools and solidifies.

• Heat and pressure change existing rock.

• Water erodes rock material.

At a convergent plate boundary, what natural events are most likely to occur? Select all that apply.

• Earthquakes

• Mountain formation

• Volcanoes

At a divergent plate boundary, what natural events are most likely to occur?

• Rifts

• Mountain formation

• Volcanoes

At a transform plate boundary, what natural events are most likely to occur?

• Earthquakes

• Mountain formation

• Volcanoes

The San Andreas Fault in California is an example of what type of plate boundary?

• Convergent

• Divergent

• Transform

• Subduction