Phosphorus
Carbon
Nitrogen
Nutrients
100

It is an essential nutrient for life, as it makes up important chemicals such as what?

What is minerals.

100

Plants use Co2 in what process?

What is Photosynthesis 

100

How much of our atmosphere is nitrogen gas?

What is 78 percent

100

Chemical substance organisms need for life is what?

What is nutrients

200

Too much phosphorus in water can lead to ____ ____?

What is plant overgrowth

200

What’s do plants use Photosynthesis for?

What is Sugar and oxygen.

200

Higher organisms use nitrogen to make their what?

What is proteins

200

Limiting nutrient: nutrient whose supply limits productivity in what?

What is soil

300

Phosphorus is NOT found in the free state in nature, but is contained mostly in ______ and _______ ?

DNA and Rocks 

300

A natural source for Co2 is what?

what is volcanos

300

Animals and plants cannot directly use all the nitrogen found in our what?

What is atmosphere

300

Normally nitrogen is limiting in the oceans

In freshwater→ phosphorus is limiting

If large influx of nutrients then increase the growth of

are all examples of what

What is aquatic 

400

Some of the phosphorus in soils can be washed away into water _____?

What is basins 

400
in the past huge deposits of carbon were stored as dead plants and animaLW were what?

What is decayed 

400

Animal waste decay by the action of bacteria which create what?

What is ammonia 

400

What is within each of the cycles?

What is oxygen

500

A source of phosphorus in water comes from what?

What is man made pollutio.

500

What is the main regulator for co2 in the atmosphere?

What is the ocean

500

In another part of the cycle Animals eat what containing nitrogen?

What is plants

500

What are the 4 cycles 

What is Water, carbon, nitrogen , and phosphorus.