Front

Most of the phosphorus in the biosphere is stored in ____

Back

rocks

Front

Plants use ____ to build organic molecules during _____

Back

CO2; photosynthesis

Front

The conversion of nitrogen from the soil into nitrogen gas is called _____

Back

denitrification

Front

Human activities such as ____________ cycle carbon through the carbon cycle

Back

burning fossil fuels

Front

Examples of precipitation in the gas form include:

Back

vapor, humidity, and steam

Front

What is the process by which water vapor turns into liquid water?

Back

Condensation

Front

What is the term for the movement of carbon through the environment and living organisms?

Back

Carbon Cycle

Front

What is the primary source of energy for the water cycle?

Back

The Sun

Front

What process do plants use to absorb carbon dioxide from the atmosphere?

Back

Photosynthesis

Front

What is the term for the process of converting nitrogen gas into a usable form for plants?

Back

Nitrogen Fixation