Carbon Cycle
Nitrogen Cycle
Phosphorus Cycle
Water Cycle
100

The function of plants in the Carbon cycle.

What is photosynthesi?

100

The atmosphere is _____ nitrogen gas.

What is 78%?

100

Phosphorus makes important chemicals in this structure.

What is DNA?

100

Water moving to the sky.

What is evaporation?

200

The equation for photosynthesis.

What is carbon dioxide and water yields oxygen and sugar?

200

The process of bacteria in soil breaking down ammonia into gaseous nitrogen.

What is denitrification?

200

Phosphorus is contained in these.

What are rocks and minerals?

200

Formation of clouds.

What is condensation?

300

Large deposits of carbon.

What are decaying plants and animals?

300

Use of nitrogen by higher organisms.

What is protien?

300
Excess phosphorus leads to_____.

What is overgrowth?

300

Water falling to ground

What is precipitation?

400

Natural source for carbon dioxide.

What is a volcanoe?

400

The natural state nitrogen is found in.

What is unusable?

400

Man made source of phosphorus in water.

What is pollution?

400

Groundwater is taken up by_____.

What are plant roots?

500

Burned fossil fuels.

What is coal, oil, and natural gas?

500

Creator of ammonia and nitrate.

What is bacteria?

500

Phosphorus in soils collects in____.

What is water basins?

500

Water seeps into the ground and becomes____.

What is groundwater?