Biogeochemical Cycle Flashcards

1
Q

What is essential to life on earth

A

Carbon

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1
Q

What are the three reactions of the carbon cycle?

A

Photosynthesis
Respiration
Combustion

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2
Q

Does the carbon cycle consist of chemical or physical changes?

A

chemical

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3
Q

what happens when you put more carbon into the atmostphere?

A

global warming

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4
Q

how does the greenhouse effect work?

A

1) sun heats the earth
2) Earth radiates heat
3) Some heat escapes atmosphere, some is trapped by greenhouse gases

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5
Q

How does the phosphorus cycle work?

A

1) Erosion
2) Absorbtion
3) Decomposition
4) Proliferation (growth or algea, ect in water) Also form rocks

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6
Q

How does Eutrophication work ?

A

1) Fertilizers and soaps and detergents go into environment
2) Form green algea in water
3) less oxygen for other life in water
4) fish die and sink to the bottom
5) their corpses form excessive sediment, ruins recreation

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7
Q

formally define eutrophication

A

the enrichment of a waterbody with nutrients, resulting in excessive growth of algae and depletion of dissolved oxygen via decomposition

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8
Q

what does decomposition use and put out?

A

they need a lot of O2 and release CO2

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9
Q
A
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