Unit 2 ES

Which process describes the movement of water through soil and porous rocks?

• Runoff

• Percolation

• Evaporation

• Condensation

Tags

NGSS.MS-ESS2-4

What is nitrogen fixation?

• Conversion of atmospheric nitrogen into ammonia by bacteria and lightning.

• Conversion of ammonia into nitrites and nitrates by bacteria.

• Plants absorbing nitrates from the soil to build proteins.

• Decomposition of organic matter into ammonia.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What process converts ammonia into nitrites and nitrates?

• Nitrification

• Assimilation

• Denitrification

• Eutrophication

Tags

NGSS.MS-LS2-3

What is ammonification?

• Decomposition of organic matter into ammonia.

• Conversion of nitrates back into nitrogen gas.

• Conversion of atmospheric nitrogen into ammonia.

• Excessive nutrients in water bodies.

Tags

NGSS.MS-LS2-3

How does phosphorus enter the biosphere?

• Plants absorb phosphorus from the soil.

• Weathering of rocks releases phosphorus.

• Through sedimentation and formation of new rocks.

• Conversion of ammonia into nitrites and nitrates.

Tags

NGSS.MS-ESS2-2

How might phosphorus return to the geosphere?

• Through sedimentation and formation of new rocks.

• Weathering of rocks releases phosphorus.

• Plants absorb phosphorus from the soil.

• Conversion of nitrates back into nitrogen gas.

Tags

NGSS.MS-ESS3-1

What happens in the mesosphere?

• Meteors burn up here, temperature decreases with altitude.

• Contains the ozone layer, temperature increases with altitude.

• Lowest layer, weather occurs here, temperature decreases with altitude.

• Contains the ionosphere, temperature increases with altitude.

What is a characteristic of the thermosphere?

• Contains the ionosphere, temperature increases with altitude.

• Meteors burn up here, temperature decreases with altitude.

• Contains the ozone layer, temperature increases with altitude.

• Lowest layer, weather occurs here, temperature decreases with altitude.

Which layer of the atmosphere contains the ozone layer?

• Thermosphere

• Troposphere

• Stratosphere

• Mesosphere

Define “CFC” and its impact on the ozone layer.

• Chlorofluorocarbons are chemicals that deplete the ozone layer.

• Carbon fluorides are gases that enhance the ozone layer.

• Chlorine fluorides are compounds that protect the ozone layer.

• Carbon fluorocarbons are substances that repair the ozone layer.