Chapter 2

What is the source of all energy on Earth?

• the wind

• the sun

• Earth's Coal

• Earth's Oxygen

What causes the seasons to change on Earth?

• the North and South Poles

• Earth's distance from the sun

• the wind currents

• the Earth's tilt as it revolves around the sun

How many layers make the the inside of Earth?

• two

• three

• four

• five

What is the correct term for Earth's completion of one full trip around the sun?

• orbit

• axis

• revolution

• circle

What percent of Earth's surface is water?

• 71 percent

• 90 percent

• 85 percent

• 75 percent

What is it called when day and night in both hemispheres are of equal length?

• summer solstice

• axis

• equinox

• winter solstice

What is the center of the Earth called?

• mantle

• core

• crust

• lithosphere

Which mountain range is underwater?

• Mount Everest

• Mariana Trench

• Blue Ridge Mountain

• Appalachian Mountain

What is an area located at the mouth of a river?

• ridge

• mountain

• plain

• delta

What is melted rock found inside the Earth?

• climate zone

• delta

• magma

• desert