Natural Cycles Review

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

Releasing nitrogen from the soil back into the atmosphere is called

The process by which an organism's body releases energy from carbon-based molecules is called

Which of the following is not one of the elements most abundant in living things?

Which process describes how plants make sugar from sunlight, water, and carbon dioxide?

Which of the following hosts nitrogen-fixing bacteria in nodules on its roots?

Air pollution can be caused by burning too many

The precipitation that flows over the surface of soil is

A polluntant released into the atmosphere is