Water vapor in the atmosphere undergoes ________ to become liquid again, the same as when water droplets form on a bathroom mirror or outside of a cold glass of water.

Water in the atmosphere returns to earth as either rain, sleet, hail, or snow in a process called _____

In the Nitrogen Cycle, _____ are important for the process of Nitrogen Fixation, which takes Nitrogen gas from the atmosphere and forms compounds that other organisms can use.

Which of the following molecules is NOT an organic molecule?

Nitrogen in the soil is returned to the atmosphere by bacteria, a process called _____

How is the carbon in many fossil fuels returned to the atmosphere?

Which of the following natural resources is NOT renewable?

In the Carbon Cycle, Plants are very important because they take in Carbon Dioxide (CO2) using a process called _____ and convert it to a useable form.

Nitrogen is contained in many fertilizers, but applying them to the surface of lawns and fields allows _____ to concentrate nitrogen in rivers and lakes.

When water on the surface of the Earth changes from a liquid to a gas (water vapor) it is known as

Which practice would deplete a renewable natural resource?

To do photosynthesis, plants take in ___

During the carbon cycle, plants take in carbon dioxide during a process called

Most rain comes from water that evaporated from oceans, so why isn't rain salty?

Surface runoff can cause

Which of these is NOT an inorganic molecule?

Water can be filtered or cleaned naturally by all of these EXCEPT

The only organisms that can do carbon fixation are

Which of these is an example of how humans can affect the water cycle AND the carbon cycle?