Definitions
Examples
carbon cycle
phosphorus cycle
nitrogen cycle
100

Elements, chemical compound, and their forms of matter are passed from one organism to another and from one part of biosphere to another 

Biogeochemical cycle 

100

Volcanic eruption, rock formation and plate tectonics 

Geological 

100

Plants use CO2 in the process of?

Photosynthesis 

100

What is phosphorus mostly contained in 

Rocks and Minerals 

100

Our atmosphere is ______ nitrogen gas

78%

200

Activity performed by living organisms 

Biological 

200

Water carbon nitrogen and phosphorus are examples of 

Nutrients 

200

Animals use oxygen in the process of _______ to make more CO2

Respiration 

200

To much phosphorous in water can lead to _______

Overgrowth 

200

Animals and plants cannot directly use all of the _________ found in the atmosphere 

Nitrogen 

300

Substance organisms need to live 

Nutrients 

300

Mining, burning fossil fuels, clearing land, and use of fertilizers are examples of what 

Human activity 

300

Huge deposits of carbon were stored as dead plants and animals ______

Decaying

300

Another source of phosphorus in water comes from what

Man made pollution 

300

Higher organisms use nitrogen to make _________

Protiens

400

Nutrients whose supply limits productivity 

Limiting nutrient 

400

Formation of clouds, lightning, flow of water are examples of what  

Chemical/physical 

400

Why is more CO2 released into the atmosphere more now than in the past

Burning of fossil fuels

400

Some phosphorus in soils can be washed into ___________

Basins

400

Animals waste decay by action of bacteria which create what 

Ammonia

500

What is the difference between in soil and in aquatic 

In soil: lack of nitrogen phosphorus and some micronutrients 

In aquatic: large influx of nutrients Increase growth

500

Coal oil and natural gas go under what category 

carbon cycle, phosphorus cycle or nitrogen cycle 

Carbon cycle 

500

What is the Greenhouse Effect 

To much CO2 in the air causing it to heat up the atmosphere

500

Phosphorus makes up important chemicals such as _________

DNA

500

_____________ bacteria in soil can break down the ammonia 

Denitrification 

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