JohnsonGeo9.2.1

Earth is part of a larger physical system that contains other 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?

• The are made of hot gasses

• The 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 a coastal plain

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

• Extreme temperatures

• Size

• Shape

• Lack of carbon dioxide