EnvSci Ch 3 Ecosystem Dynamics/ Sect1 Earth's Spheres

Only about 0.024% of Earth's vast water supply is available to humans and other species as liquid fresh water.

• True

• False

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Because Earth can not get significant inputs of matter from space, its fixed supply of nutrients must continually be recycled to support life.

• True

• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-1

NGSS.MS-LS2-3

If Earth were an apple, its biosphere would be no thicker than the apple’s skin.

• True

• False

The air people breathe resides in the lowermost layer of the atmosphere called the ____.

• troposphere

• stratosphere

• ozone layer

• geosphere

• biosphere

Earth’s life-support system consists of four main spherical systems—the air, water, living things, and the ____.

• troposphere

• biosphere

• geosphere

• hydrosphere

• atmosphere

Oxygen accounts for about ____ of the air in the atmosphere.

• 3%

• 21%

• 53%

• 78%

• 97%

The oceans contain about ____ of Earth’s water.

• 21%

• 38%

• 55%

• 78%

• 97%

Tags

NGSS.MS-ESS2-4

The _______ occupies those parts of the atmosphere, hydrosphere, and geosphere where life is found.

• geosphere

• atmosphere

• biosphere

• hydrosphere

• stratosphere

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

____________________ makes up 78% of the volume of the atmosphere.

• Oxygen

• Nitrogen

• Carbon Dioxide

• Methane

• Water Vapor

As solar energy interacts with carbon dioxide, water vapor, and several other gases in the troposphere, it warms the troposphere—a process known as the ____________________ effect.

• atmosphere

• climate change

• global heating

• green house

• ozone

Tags

NGSS.HS-ESS2-4