Cycles of Materials CfU

Where does most of the water in the atmosphere come from?

The ocean

When water falls from clouds to the ground, this is called

precipitation

What are clouds made of?

Condensed water

In the atmosphere, carbon is found in the form of

Carbon dioxide

Two places carbon dioxide is made are

animals breathing (respiration) and burning fuels

How are producers involved in the carbon cycle?

They remove carbon dioxide from the atmosphere

What is nitrogen fixation?

The process where bacteria take nitrogen and turn it into a form that plants and animals can use

Where can you find the bacteria that do nitrogen fixation?

On the roots of plants