Biogeochemical Cycles

Front

What is the largest reservoir for nitrogen?

Back

The atmosphere.

Front

Where is the largest reservoir for the phosphorus cycle?

Back

Rocks and minerals.

Front

Which nutrient is not cycled through the atmosphere?

Back

Phosphorus.

Front

Phosphorus is released from rock through ________

Back

Weathering.

Front

Plant roots directly obtain water from

Back

Groundwater stored below the soil.

Front

What is a biogeochemical cycle?

Back

A natural process that recycles nutrients in various chemical forms from the non-living environment to living organisms and back.

Front

Name the four main biogeochemical cycles.

Back

Water cycle, carbon cycle, nitrogen cycle, phosphorus cycle.

Front

What role do decomposers play in biogeochemical cycles?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.

Front

How does the carbon cycle impact climate change?

Back

Increased carbon dioxide from human activities enhances the greenhouse effect, leading to global warming.

Front

What is the process of nitrogen fixation?

Back

The conversion of atmospheric nitrogen into a form usable by plants, often facilitated by bacteria.