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Nutrient Cycles
Test Description: Water, Oxygen, Carbon, Nitrogen, and Phosphorus Cycles
Instructions: Answer all questions to get your test result.
1) What are the main processes of the water cycle?
A
Evaporation, Condensation, Precipitation
B
Erosion, Precipitation, Weathering
C
Weathering, Precipitation, Evaporation
D
Precipitation, Condensation, Erosion
2) What process removes carbon dioxide from the atmosphere?
A
Evaporation
B
Photosynthesis
C
Transpiration
D
Respiration
3) How does carbon dioxide get released into the atmosphere?
A
Evaporation
B
Erosion
C
Photosynthesis
D
Burning fossil fuels
4) Which element is the most abundant in the atmosphere, but it has to be
A
Oxygen
B
Nitrogen
C
Phosphorus
D
Carbon
5) What has to happen to nitrogen before it can be
A
Taken in by plants
B
It has to go in to the soil
C
Eaten by smaller animals
D
Bacteria must convert it
6) The erosion of rocks causes the release of what element?
A
Phosphorus
B
Nitrogen
C
Oxygen
D
Carbon
7) Fertilizers are rich in which two elements?
A
Carbon and Nitrogen
B
Hydrogen and Carbon
C
Oxygen and Phosphorus
D
Nitrogen and Phosphorus
8) The burning of fossil fuels is known as what?
A
Evaporation
B
Combustion
C
Erosion
D
Transpiration
9) How do humans alter the carbon cycle?
A
By using too much fertilizer
B
By planting too many trees
C
By breathing out carbon dioxide
D
By burning fossil fuels
10) How does deforestation affect the carbon cycle?
A
Trees take in carbon dioxide through photosynthesis, so there will be too much carbon dioxide
B
Cutting down trees causes carbon to enter the soil
C
Cutting down trees doesn't affect the carbon cycle
D
Trees release carbon dioxide, so there won't be enough carbon dioxide without trees
*select an answer for all questions
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