Biogeochemical Cycle Review

Which of the following will DECREASE the amount of carbon dioxide in the atmosphere?

• Combustion of fossil fuels

• Respiration

• Photosynthesis

• Decomposition

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which type of organisms are responsible for turning nitrogen gas into a form useable by other organisms?

• Animals

• Plantae

• Fungi

• Bacteria

Tags

NGSS.MS-LS2-3

Which process involves the conversion of nitrates into nitrogen gas by bacteria?

• Ammonification

• Nitrification

• Nitrogen Fixation

• Denitrification

Which sphere does phosphorus NOT cycle through during the phosphorus cycle?

• Biosphere

• Geosphere

• Atmosphere

• Hydrosphere

Which process in the nitrogen cycle is facilitated by bacteria according to the model?

• Plants absorbing nitrogen directly from the air.

• Decomposers converting ammonium into nitrites.

• Animals converting nitrogen gas into nitrates.

• Bacteria transforming nitrates into nitrogen gas.

Tags

NGSS.MS-LS2-3

Which organism in the nitrogen cycle plays a role similar to that of plants in the carbon cycle?

• Animals

• Denitrifying bacteria

• Nitrogen-fixing bacteria

• Decomposers

Which process in the carbon cycle is directly affected by deforestation?

• Photosynthesis

• Respiration

• Decomposition

• Combustion

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

According to this diagram, plants absorb

• nitrates

• nitrogen fixing bacteria

• animals

• decomposers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

How do oceans contribute to the regulation of atmospheric carbon dioxide levels?

• They emit carbon dioxide into the atmosphere

• They act as a sink for carbon dioxide from the atmosphere

• They generate carbon through marine life

• They have no impact on atmospheric carbon dioxide

Tags

NGSS.HS-ESS2-6

Can animals consume nitrogen gas (N₂) directly from the air?

• No

• Yes

Tags

NGSS.MS-LS2-3