Biogeochemical Cycles Review

The most abundant gas within the atmosphere is

• carbon.

• hydrogen.

• oxygen.

• nitrogen.

The process of _______occurs when animals, plants, bacteria, fire, decomposition and rusting of metal happen within nature.

• percolation

• oxidation

• nitrification

• eutrophication

Tags

NGSS.MS-LS2-3

More carbon dioxide (CO₂) is released in the atmosphere today than in the past because of

• the level of nitrogen in the air.

• the burning of fossil fuels.

• the breakdown of ammonia into nitrites.

• chemical erosion.

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

NGSS.HS-LS2-5

_______ is the process that turns water vapor into liquid, which causes the formation of a cloud.

• Condensation

• Evaporation

• Percolation

• Transpiration

Tags

NGSS.MS-ESS2-4

The movement of water through the soil itself is

• precipitation.

• transpiration.

• percolation.

• evaporation.

Tags

NGSS.MS-ESS2-4

__________ bacteria in the soil can break down the ammonia into the gaseous form of nitrogen, which is not available for use by plants and animals.

• Nitrogen-fixing

• Protein-making

• Denitrificating

• Eroding

Tags

NGSS.MS-LS2-3

Some of the phosphorus in soils can be washed away into water ________.

• pollution

• water tables

• phytoplankton

• methane

Which cycle does not include the atmosphere because it is not found as a gas?

• carbon

• nitrogen

• phosphorus

• water

Plants _______ water from their leaves and water _______ from the soil around them.

• evaporate, transpire

• transpire, evaporate

• condense, precipitate

• precipitate, condense

Tags

NGSS.MS-LS2-1

Select all of the following that correctly describe run-off:

• occurs because of temperature change

• water running on the surface of the land

• Recharges groundwater, keeping aquifers full of water

• soaks into ground or reaches other bodies of water

• provides evaporated water to the water cycle

Tags

NGSS.MS-ESS2-4