BIOGEOCHEMICAL CYCLES

Front

What happens when organisms die and decay?

Back

Their nitrogen returns to the soil as ammonium.

Front

What is the process called in the water cycle where surface waters change from liquid state to gas state and re-enters the atmosphere?

Back

Evaporation.

Front

What is the largest reservoir for nitrogen in the world?

Back

The atmosphere.

Front

When nitrogen gas is turned into a form that plants and animals can use, what is this process called?

Back

Nitrogen Fixation.

Front

Identify the cycle pictured: The Water cycle, The Carbon cycle, The Nitrogen cycle, The Phosphorus cycle.

Back

The Phosphorus cycle.

Front

What is the process by which water vapor cools and changes back into liquid water?

Back

Condensation.

Front

What is the term for the movement of carbon through the environment, including the atmosphere, oceans, and living organisms?

Back

The Carbon Cycle.

Front

What is the role of decomposers in biogeochemical cycles?

Back

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

Front

What is transpiration in the context of the water cycle?

Back

Transpiration is the process by which water is absorbed by plants and released as vapor into the atmosphere.

Front

What is the significance of nitrogen fixation in agriculture?

Back

Nitrogen fixation enriches soil with usable nitrogen, promoting plant growth.