Biogeochemical Cycles Review

Front

What is the main process that adds carbon dioxide to the atmosphere?

Back

Burning fossil fuels, cellular respiration, and decomposing organic matter all contribute to the increase of carbon dioxide in the atmosphere.

Front

Where is carbon stored in the environment?

Back

Carbon is stored in fossil fuels, wood of trees, and calcium carbonate (shells and bones).

Front

Photosynthesis and Cellular Respiration are crucial in which biogeochemical cycle?

Back

The Carbon cycle.

Front

What process is responsible for removing carbon from the atmosphere?

Back

Photosynthesis is the only process that removes carbon dioxide from the atmosphere.

Front

Which gas is the most abundant in the atmosphere?

Back

Nitrogen is the most abundant gas in the atmosphere.

Front

Define the Carbon Cycle.

Back

The Carbon Cycle is the process by which carbon is exchanged among the biosphere, geosphere, hydrosphere, and atmosphere of the Earth.

Front

What role do plants play in the Carbon Cycle?

Back

Plants absorb carbon dioxide during photosynthesis, which helps to reduce the amount of carbon dioxide in the atmosphere.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, producing carbon dioxide and water as byproducts.

Front

What is the significance of decomposing organic matter in the Carbon Cycle?

Back

Decomposing organic matter releases carbon back into the atmosphere as carbon dioxide, completing the cycle.

Front

Explain the role of fossil fuels in the Carbon Cycle.

Back

Fossil fuels store carbon that was once part of living organisms; when burned, they release carbon dioxide into the atmosphere.