Biogeochemical Cycles

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth, involving processes such as evaporation, condensation, precipitation, and transpiration.

Front

What is transpiration?

Back

Transpiration is the process by which plants lose water vapor through small openings in their leaves called stomata.

Front

What is runoff?

Back

Runoff is the flow of water, usually from precipitation, that moves across the land surface and can carry nutrients and pollutants into water bodies.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process by which nitrogen gas from the atmosphere is converted into ammonia or related compounds in soil, making it available for plants.

Front

What is the largest reservoir for nitrogen?

Back

The atmosphere is the largest reservoir for nitrogen.

Front

What is the phosphorus cycle?

Back

The phosphorus cycle is the process by which phosphorus moves through the lithosphere, hydrosphere, and biosphere, primarily through rocks, soil, water, and living organisms.

Front

Where is the largest reservoir for the phosphorus cycle?

Back

The largest reservoir for the phosphorus cycle is rocks and minerals.

Front

What is evaporation?

Back

Evaporation is the process by which water changes from a liquid to a gas or vapor, usually due to heat from the sun.

Front

What is condensation?

Back

Condensation is the process by which water vapor in the air cools and changes back into liquid water, forming clouds.

Front

What role do bacteria play in the nitrogen cycle?

Back

Bacteria play a crucial role in the nitrogen cycle by facilitating processes such as nitrogen fixation, nitrification, and denitrification.