Biogeochemical Cycles

When nitrogen gas is turned in to a form that plants and animals can use is called 

• Combustion

• Photosynthesis

• Decomposition

• Nitrogen Fixation

How do  animals get nitrogen?

• the atmosphere 

• eating other organisms

• bacteria

• lightning 

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

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

What do the water, carbon, oxygen, nitrogen, a phosphorus cycles have in common?

• All involve liquid substances falling to the Earth from the atmosphere?

• None of the processes works at low temperature.

• All involve the constant cycling of substances between animals, plants, and the Earth.

• All involve the transfer of substances between the earth and outer space.

Tags

NGSS.MS-ESS2-4

What happens when organisms die and decay? 

• Their nitrogen moves to the air as nitrogen gas

• Their nitrogen returns to the soil as ammonium

• Their nitrogen becomes tapped in clay and is unusable

• They stay on earth forever

Tags

NGSS.MS-LS2-3

Which process in the water cycle involves the conversion of water vapor into liquid water?

• Evaporation

• Condensation

• Precipitation

• Transpiration

What is the primary role of decomposers in the carbon cycle?

• To release oxygen into the atmosphere

• To convert carbon dioxide into glucose

• To break down dead organisms and release carbon dioxide

• To fix carbon into organic compounds

Tags

NGSS.MS-LS2-3