Biogeochemical Cycles

Front

What is the energy source for the water cycle?

Back

The sun.

Front

The process of plants losing water through their leaves is called ____.

Back

Transpiration.

Front

Organisms require nitrogen to make which of the following?

Back

Proteins and nucleic acids.

Front

How do animals get nitrogen?

Back

By eating other organisms.

Front

What is condensation?

Back

The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.

Front

What is the water cycle?

Back

The continuous process by which water moves from the Earth's surface to the atmosphere and back.

Front

What role do decomposers play in the nitrogen cycle?

Back

They break down organic matter, releasing nitrogen back into the soil.

Front

What is evaporation?

Back

The process by which water changes from a liquid to a gas or vapor.

Front

What is precipitation?

Back

Any form of water that falls from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.

Front

What is the carbon cycle?

Back

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