A View of Earth

A View of Earth

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Multiple Choice

What percent of the air in Earth's atmosphere is within 16 kilometer from Earth's surface?

• 10%

• 75%

• 90%

• 95%

Multiple Select

Earth needs an atmosphere because it _______. (Choose all that are true.)

• provides gases for organisms to survive

• protects Earth from the Sun's radiation

• produces weather.

• prevent heat from reaching Earth.

Multiple Choice

The frozen part of Earth's hydrosphere is called the ______.

• asthenosphere

• cryosphere

• biosphere

• lithosphere

Multiple Choice

True or False. Almost 97% of the water on Earth is saltwater.

• True

• False

Multiple Select

Which of the following are freshwater?

• sea

• lake

• river

• ocean

Multiple Choice

True or False.

Organisms do not need water to survive?

• True

• False

Multiple Choice

True or False.

Organisms will live where water is available.

• True

• False

Multiple Choice

The ______ is the rigid (stiff) part of Earth in the crust and upper mantle.

• geosphere

• asthenosphere

• lithosphere

• cryosphere

Multiple Choice

Rocks that are solid but can flow slowly are found in the ________.

• lithosphere

• cryosphere

• biosphere

• asthenosphere

Multiple Choice

The _______ is made up off all living things on Earth.

• geosphere

• hydrosphere

• biosphere

• atmosphere