Biogeochemical Cycles

Front

What is the process by which plants capture CO2 from the atmosphere and convert it into sugar?

Back

Photosynthesis

Front

What do plants use to build organic molecules during photosynthesis?

Back

CO2

Front

How do photosynthesizing plants affect the carbon cycle?

Back

They absorb CO2 from the atmosphere, lowering atmospheric levels of carbon.

Front

What is the stage in the nitrogen cycle where one organism eats another to obtain nitrogen?

Back

Consumption

Front

How does phosphorus cycle from grass to a deer?

Back

Through grazing.

Front

What is the term for the process of converting nitrogen gas from the atmosphere into a form usable by plants?

Back

Nitrogen Fixation

Front

What is the process by which bacteria convert nitrates back into nitrogen gas?

Back

Denitrification

Front

What is the term for the movement of phosphorus through the lithosphere, hydrosphere, and biosphere?

Back

Phosphorus Cycle

Front

What role do decomposers play in biogeochemical cycles?

Back

They break down dead organisms, returning nutrients to the soil.

Front

What is the main reservoir of carbon in the carbon cycle?

Back

The atmosphere and oceans.