Biogeochemical Cycle Review

Front

What is the process of denitrification?

Back

Denitrification is the conversion of nitrates into nitrogen gas by bacteria, which returns nitrogen to the atmosphere.

Front

How do oceans regulate atmospheric carbon dioxide levels?

Back

Oceans act as a sink for carbon dioxide from the atmosphere, absorbing it and helping to regulate global carbon levels.

Front

What is condensation in the water cycle?

Back

Condensation is the stage of the water cycle where water vapor transforms into liquid droplets, forming clouds.

Front

What is the role of bacteria in nitrogen fixation?

Back

Bacteria convert nitrogen gas from the atmosphere into nitrates, making nitrogen available for plants.

Front

How do increased carbon dioxide levels affect Earth's climate?

Back

Increased carbon dioxide levels cause long-term warming of the planet, contributing to climate change.

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, and denitrification.

Front

What is the significance of the carbon cycle?

Back

The carbon cycle is crucial for regulating Earth's climate and supporting life by cycling carbon through the atmosphere, oceans, and living organisms.

Front

Define ammonification.

Back

Ammonification is the process by which organic nitrogen is converted into ammonia by decomposers.

Front

What is nitrification?

Back

Nitrification is the process by which ammonia is converted into nitrates by bacteria, making nitrogen available to plants.

Front

Explain the role of photosynthesis in the carbon cycle.

Back

Photosynthesis allows plants to absorb carbon dioxide from the atmosphere and convert it into organic matter, releasing oxygen.