Nitrogen and Carbon Cycle Flashcard

Front

What happens to nitrogen when plants and animals die?

Back

It is released back into the atmosphere by decomposers.

Front

Which of the following processes is a part of the nitrogen cycle?

Back

Nitrogen fixation.

Front

What happens during deposition?

Back

Eroded particles are deposited in a new location.

Front

How do animals get nitrogen?

Back

From eating plants.

Front

What effect does burning fossil fuels have on the nitrogen cycle?

Back

It releases nitrous oxide, contributing to acid rain.

Front

Define nitrogen fixation.

Back

The process by which nitrogen gas from the atmosphere is converted into ammonia or related compounds in soil.

Front

What role do decomposers play in the nitrogen cycle?

Back

Decomposers break down dead organic matter, releasing nitrogen back into the soil and atmosphere.

Front

Explain the process of nitrification.

Back

Nitrification is the conversion of ammonia into nitrites and then into nitrates by bacteria in the soil.

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, biosphere, and geosphere.

Front

How do plants absorb nitrogen?

Back

Plants absorb nitrogen primarily in the form of nitrates from the soil.