Vocabulary List 10

Match it! Select the correct answer from the pull down...Good luck!

A natural process in which substances are broken down to create energy.

A natural process with plants in which carbon dioxide and water are converted into sugar.

Nitrogen gas is converted into a usable compound called nitrates by certain types of microorganisms.

This describes the movement of nitrogen throughout the atmosphere, lithosphere and biosphere.

Some bacteria take nitrogen out of compounds in the soil and change it back into nitrogen gas that is released into the atmosphere.

Cutting down large areas of trees. This puts more carbon dioxide and less oxygen in the air.

A natural process in which organic matter, like dead organisms, decompose or break down.

The release of carbon dioxide that was once dissolved in water into the air