Carbon and Nitrogen Cycles Review

Front

What is the Greenhouse Effect?

Back

The Greenhouse Effect is the process by which heat is retained in Earth's atmosphere by greenhouse gases.

Front

What process releases carbon and nitrogen into the soil through decay?

Back

Decomposition is the process that releases carbon and nitrogen into the soil through decay.

Front

What is the process of breathing in oxygen and releasing carbon dioxide called?

Back

The process of breathing in oxygen and releasing carbon dioxide is called Respiration.

Front

Which gas is most abundant in the atmosphere?

Back

Nitrogen gas is the most abundant gas in the atmosphere.

Front

What are all the gases surrounding Earth collectively known as?

Back

All the gases surrounding Earth are known collectively as the atmosphere.

Front

What role do greenhouse gases play in the atmosphere?

Back

Greenhouse gases trap heat in the atmosphere, contributing to the Greenhouse Effect.

Front

What is the primary source of carbon dioxide in the atmosphere?

Back

The primary source of carbon dioxide in the atmosphere is the respiration of living organisms and the burning of fossil fuels.

Front

How does photosynthesis contribute to the carbon cycle?

Back

Photosynthesis converts carbon dioxide into organic matter, releasing oxygen as a byproduct.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting nitrogen gas from the atmosphere into ammonia or related compounds in the soil.

Front

What is the significance of decomposition in the nitrogen cycle?

Back

Decomposition breaks down organic matter, returning nitrogen to the soil and making it available for plants.