The Earth Review

The Earth is part of a larger physical system that contains planets, moons, and stars.

• True 
• False

Planets, moons, and stars revolve around the sun, but asteroids and meteoroids do not.

• True
• False

The biosphere cannot exist without interaction with the atmosphere and hydrosphere.

• True 
• False

The lithosphere is the part of Earth where life exists.

• True
• False

Earth's surface is made up of 70% water and 30% land.

• True
• False

The _________________ includes all liquid and frozen surface water, ground water, and water vapor.

• Lithosphere
• Biosphere
• Hydrosphere
• Atmosphere

What keeps the planets revolving around the sun?

• The sun's heat
• The sun's gravitational pull
• The Sun's inertia
• The Sun's energy

Why are Mercury and Venus scalding hot?

• They are made of hot gasses.
• They are made of semi-solid magma.
• They are closest to the sun.
• They have thin atmospheres.

A continental shelf is _________________.

• A landform that connects continents
• A landform that separates continents
• An underwater extension of alluvial sediment
• An underwater extension of coastal plain

Life does not exist on other planets in our solar system due to their _________________.

• Extreme temperatures
• Size
• Shape
• Lack of Carbon Dioxide