Biogeochemical Cycles

Carbon dioxide is added to the atmosphere by

• Burning fossil fuels 

• Cellular respiration

• Decomposing organic matter

• All answers are correct

Tags

NGSS.MS-ESS3-4

Identify the cycle pictured.

• The Water cycle

• The Carbon cycle

• The Nitrogen cycle

• The Phosphorus cycle

Tags

NGSS.MS-LS1-6

A correct path that nitrogen could take would be

• air -> animals -> plants -> bacteria

• animals -> air -> bacteria -> plants

• bacteria -> air -> plants -> animals

• air -> bacteria -> plants -> animals

Tags

NGSS.MS-LS2-3

What role do animals play in the carbon cycle?

• absorb carbon dioxide from the atmosphere

• give off carbon dioxide through respiration

• combustion

• decomposing matter

Tags

NGSS.MS-LS2-3

In the carbon cycle, producers take in the gas __

• carbon dioxide

• oxygen

• nitrogen

• carbon monoxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis

•  decomposition and respiration

Which nutrient is not cycled through the atmosphere and stays only on ground level?

• carbon

• nitrogen

• phosphorus

• water

How does carbon dioxide leave the atmosphere and become part of the food chain?

• Through transpiration

• Through photosynthesis

• Through factory emission

• Sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How does nitrogen become part of the food chain?

• Through transpiration by plants

• Through uptake of nitrogen compounds in the soil by plants

• Through factory emission and combustion of fossil fuels

• Sunlight changes nitrogen into usable forms

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

How do  animals get nitrogen?

• the atmosphere 

• eating other organisms

• bacteria

• lightning 

Tags

NGSS.MS-LS2-3