Biogeochemical Cycles Lesson

Process where excess nutrients enter body of water causing overgrowth of aquatic plants and algae...

• Eutrophication

• Acid Precipitation

• Nitrogen Fixation

• Decomposition

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

How do plants get the nitrogen they need?

• from the air

• from the soil or water in which they live

• from the Sun

• from broken-down rocks

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NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which nitrogen cycle process is occurring when plant roots absorb ammonium ions and nitrate ions for use in making molecules such as DNA, amino acids, and proteins?

• nitrogen fixation

• nitrification

• denitrification

• ammonification

• assimilation

Which nitrogen cycle process is occurring when nitrogen in plant or animal protein is converted to ammonium?

• nitrogen fixation

• nitrification

• denitrification

• ammonification

• assimilation

Which of these nitrogen cycle processes takes nitrogen from its largest reservoir?

• nitrogen fixation

• nitrification

• denitrification

• ammonification

• assimilation

This is NOT a part of the phosphorus cycle.

• Phosphate is incorporated into sedimentary rocks

• Phosphate bound to soil

• Atmospheric phosphate

• Phosphate is absorbed from the soil by plants

Phosphorous is passed from plants to ____ who eat them

• plants

• animals

• scavengers

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NGSS.MS-LS2-3

What role do decomposers play in the phosphorous cycle?

• absorb phosphorous 

• release phosphorous into atmosphere

• return phosphorous into the soil

• combustion

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NGSS.MS-LS2-3

Too much phosphorus in waterways (rivers, lakes) can lead to___________.

• eutrophication

• Nothing

• Death

• diseases

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which cycle are fossil fuels (oil, coal, natural gas) part of?

• carbon

• water

• nitrogen

• phosphorus

Tags

NGSS.MS-ESS2-1