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Biogeochemical Cycles
Test Description: Review the Carbon, Nitrogen and Water Cycles.
Instructions: Answer all questions to get your test result.
1) This process removes carbon dioxide from the atmosphere.
A
decomposition
B
nitrogen fixation
C
photosynthesis
D
cellular respiration
2) Where does water come from before going into a plant?
A
lithosphere
B
atmosphere
C
biosphere
D
hydrosphere
3) What reactants are used in the process of cellular respiration?
A
carbon dioxide and water
B
carbon dioxide and oxygen
C
sugar and oxygen
D
sugar and water
4) Where is water located before condensing into a cloud?
A
lithosphere
B
hydrosphere
C
atmosphere
D
biosphere
5) What are the products of cellular respiration?
A
sugar and oxgyen
B
carbon dioxide and oxygen
C
carbon dioxide and water
D
water and sugar
6) What form of water exists in a cloud?
A
gas
B
liquid
C
solid
D
non newtonian
7) What are the reactants needed for photosynthesis?
A
carbon dioxide
B
carbon dioxide and water
C
sugar and oxgyen
D
water
8) Where do plants get carbon?
A
biosphere
B
atmosphere
C
hydrosphere
D
lithosphere
9) What are the products of photosynthesis?
A
sugar
B
sugar and oxgyen
C
carbon dioxide and water
D
carbon dioxide
10) Which of the following does NOT put carbon dioxide back into the atmosphere?
A
decomposition
B
photosynthesis
C
combustion
D
cellular respiration
11) What occurs during denitrification?
A
Bacteria return nitrogen to gas form.
B
Plants and animals eat nitrogen.
C
Plants use nitrogen gas.
D
Bacteria convert nitrogen to a usable form.
12) What happens to the amount of matter over time?
A
increases
B
stays the same
C
decreases
D
increases then decreases
13) Which process is bacteria NOT responsible for?
A
denitrification
B
decomposition
C
nitrogen fixation
D
cellular respiration
14) When water droplets form, which process has likely occured?
A
transpiration
B
run-off
C
evaporation
D
condensation
15) What forms during the process of evaporation?
A
snow
B
water
C
ice
D
water vapor
16) During which process do plants need oxygen?
A
cellular respiration
B
precipitation
C
nitrogen fixation
D
decomposition
17) Which process removes nitrogen from the atmosphere?
A
cellular respiration
B
denitrification
C
photosynthesis
D
nitrogen fixation
18) How do animals get the carbon and nitrogen they need?
A
eating
B
breathing
C
from the ground
D
from decomposition
19) This process occurs when bacteria convert ammonium in the soil into nitrates which plants can absorb.
A
denitrification
B
nitrification
C
nitrogen fixation
D
decomposition
*select an answer for all questions
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