Biogeochemical cycles

Front

What is nitrogen fixation?

Back

The process in which certain bacteria convert nitrogen gas into ammonia.

Front

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

Back

Through decomposition and respiration.

Front

What is the largest reservoir for water on Earth?

Back

The ocean.

Front

What is the nitrogen cycle?

Back

A biogeochemical cycle that describes the transformation of nitrogen and nitrogen-containing compounds in nature.

Front

What is evaporation?

Back

The process by which water is heated and turns into water vapor.

Front

What role do decomposers play in the carbon cycle?

Back

They break down dead organic matter, returning carbon to the atmosphere.

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.

Front

What is photosynthesis?

Back

The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is respiration in the context of the carbon cycle?

Back

The process by which living organisms convert oxygen and glucose into energy, releasing carbon dioxide.

Front

What are nitrates?

Back

Chemical compounds that contain nitrogen and oxygen, important for plant growth.