Science Quiz - 10/26/18

What is the shape of our Earth?

• circle

• cone

• rectangular prism

• sphere

Describe the lithosphere.

• solid part of Earth

• part of Earth covered by water

• part of Earth that surrounds our planet

• part of Earth that contains all living organisms

Describe the hydrosphere.

• solid part of Earth

• part of Earth covered by water

• part of Earth that surrounds our planet

• part of Earth that contains all living organisms

Describe the atmosphere.

• solid part of Earth

• part of Earth covered by water

• part of Earth that surrounds our planet

• part of Earth that contains all living organisms

Describe the biosphere.

• solid part of Earth

• part of Earth covered by water

• part of Earth that surrounds our planet

• part of Earth that contains all living organisms

What percentage of our air is made up of nitrogen?

• 0%

• 1%

• 21%

• 78%

What percentage of our air is made up of oxygen?

• 0%

• 1%

• 21%

• 78%

What percentage of our air is made up of carbon dioxide and other trace gases?

• 0%

• 1%

• 21%

• 78%

About what percentage of Earth's surface is covered in water?

• 100%

• 75%

• 50%

• 25%

This is the lowest layer of the atmosphere.

• troposphere

• stratosphere

• mesosphere

• thermosphere