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Biogeochemical Cycles Review
Test Description: Water cycle, carbon/oxygen cycle, and nitrogen cycle
Instructions: Answer all questions to get your test result.
1) By what process is carbon dioxide removed from the air and used to by plants to make sugars?
A
decomposition
B
photosynthesis
C
cellular respiration
D
combustion
2) By what process does the decaying bodies of plants and animals release carbon dioxide into the air?
A
decomposition
B
combustion
C
cellular respiration
D
photosynthesis
3) By what process do plants and animals break down sugars and release carbon dioxide into the air?
A
photosynthesis
B
cellular respiration
C
decomposition
D
combustion
4) By what process is oxygen removed from the air to be used by plants and animals to break down sugars to create cellular energy?
A
cellular respiration
B
decomposition
C
combustion
D
photosynthesis
5) Which of the following term refers to the burning of organic matter, such a leaves and fossil fuels?
A
cellular respiration
B
photosynthesis
C
decomposition
D
combustion
6) By what process is oxygen released into the air as plants and algae make sugars?
A
decomposition
B
combustion
C
photosynthesis
D
cellular respiration
7) By what process do soil bacteria and lightning strikes remove nitrogen from the air?
A
nitrogen fixation
B
denitrification
C
ammonification
D
nitrification
8) By what process do bacteria convert ammonium into nitrates?
A
nitrogen fixation
B
denitrification
C
ammonification
D
nitrification
9) By what process do plants take nitrates into their roots so they can have nitrogen to make proteins?
A
nitrification
B
assimilation
C
ammonification
D
nitrogen fixation
10) By what process is nitrogen found in waste and decomposing organisms converted into ammonium.
A
nitrogen fixation
B
assimilation
C
ammonification
D
denitrification
11) By what process do soil bacteria convert nitrogen back into a gas and return it to the air?
A
denitrification
B
decomposition
C
nitrification
D
nitrogen fixation
12) By what process is liquid water converted into a vapor and returned to the air?
A
precipitation
B
condensation
C
transpiration
D
evaporation
13) By what process is water in the leaves of plants converted into a vapor and returned to the air?
A
transpiration
B
condensation
C
precipitation
D
evaporation
14) By what process does water in the atmosphere cools and forms clouds?
A
transpiration
B
condensation
C
precipitation
D
evaporation
15) By water process is water removed from the atmosphere and returns to Earth in the from of rain, snow, or sleet?
A
transpiration
B
evaporation
C
precipitation
D
condensation
16) By what process does water travel over the surface of the earth and enter a body of water?
A
Run-off
B
Seepage
C
Root uptake
D
Infiltration
17) By what process does water seep into the soil and forms groundwater reservoirs?
A
Run-off
B
Root uptake
C
Ponding
D
Infiltration
*select an answer for all questions
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