171. The Nitrogen Cycle

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

Animals get their needed nitrogen from ___________the plants that contain the nitrogen.

Plants and animals can or can not use nitrogen directly from the air.

Nitrogen is necessary for both plants and _____________ to live and grow.

Nitrogen makes up around _____________of the air around us.

Nitrogen is needed for our bodies to make ___________. Therefore, nitrogen is called the “building blocks of life”.

The process for turning the nitrogen in the atmosphere into a usable form of nitrogen is called_____________.

According to the video, ________________is essential to life on earth.

The legume family, such as beans, peas and clover, ____________the process using their root nodules to absorb nitrogen.