Earth Science Lesson 1-4 Reviewer

Which is NOT a reason that makes Earth habitable?

• Distance from the sun

• Solar energy reaches the Earth

• Protected by magnetic field

• Kept warm by atmosphere

How much of the solar system's mass is contained within the sun?

• 99.85%

• 99%

• 71.64%

• 97.3%

Which planet is NOT part of the Terrestrial planets?

• Mercury

• Earth

• Neptune

• Mars

These are also referred to as "Gas Planets".

• Jovian

• Terrestrial

• Gas Giants

• Ice Giants

These terrestrial planets have a liquid core.

• Earth and Venus

• Earth and Mercury

• Venus and Mercury

• Earth and Mars

How much of the Earth's surface is covered by the ocean?

• 71%

• 72%

• 97%

• 83%

This protects us from lethal cosmic rays.

• Ozone Layer

• Atmosphere

• Magnetic Field

• Cats

What could happen if a planet has too little Atmosphere?

• The gas escapes into space

• Resources start declining

• Organisms can't grow

• Water and other liquids start to freeze

Which is NOT a factor that makes a planet liveable?

• Energy

• Mass

• Temperature

• Nutrients

True or false: Any planet or moon with sub-surface water or molten rocks can circulate and replenish nutrients for organisms.

• True

• False