Biogeochemical Cycles Lesson

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

Tags

NGSS.MS-LS2-2

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

Tags

NGSS.MS-LS2-3

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

• eutrophication

• Nothing

• Death

• diseases

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

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

• Eutrophication

• Acid Precipitation

• Nitrogen Fixation

• Decomposition

Tags

NGSS.MS-LS2-4

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

• bacteria

• plants

• animals

• producers

Tags

NGSS.MS-LS2-3

The process of plants losing water through their leaves is called ____.

• condensation

• evaporation

• transpiration

• exhaling

Where is carbon stored in the environment?

• Fossil fuels

• Wood of trees

• Calcium carbonate (shells and bones)

• All of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3