Cycles in Nature

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is a natural process in which nitrogen moves from the atmosphere into the soil, into living organisms, and back into the atmosphere.

Front

How do humans obtain nitrogen?

Back

Humans obtain nitrogen by eating plants and animals.

Front

Where can carbon be found in nature?

Back

Carbon can be found in the ocean, seas, rocks, the mantle of the Earth, and the atmosphere.

Front

What is a major contributor to global warming?

Back

Excess carbon dioxide is a major contributor to global warming.

Front

What happens when fossil fuels are burned?

Back

Burning fossil fuels releases carbon dioxide into the atmosphere, affecting the balance of the carbon cycle.

Front

What role do plants play in the nitrogen cycle?

Back

Plants absorb nitrogen from the soil, which is essential for their growth.

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms.

Front

How does carbon dioxide affect the environment?

Back

Carbon dioxide traps heat in the atmosphere, contributing to the greenhouse effect and global warming.

Front

What is the importance of the nitrogen cycle for living organisms?

Back

The nitrogen cycle is crucial because nitrogen is a key component of amino acids and nucleic acids, which are essential for life.

Front

What is a greenhouse gas?

Back

A greenhouse gas is a gas that contributes to the greenhouse effect by absorbing infrared radiation, e.g., carbon dioxide.