Nutrient Cycles 2
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Display your knowledge of Nutrient Cycles and Ecological Succession Please include your School Letters with your Name.
- 1.The term "cycle" is used in nutrient cycles because.
- A.
They have two parts like the two wheels of a "bicycle".
- B.
Their steps always form a long ring, like a snake biting its tail.
- C.
The nutrients always get cycled and recycled through the many paths of the system.
- 2.Eutrophication is the situation where....
- A.
The atmospheres receives too much carbon and it traps more heat.
- B.
A water body is damaged by excess nutrients like nitrogen.
- C.
A piece of land is over fertilized.
- 3.The Greenhouse Effect is a problem that occurs when.
- A.
A water body is destroyed by excess nutrients like nitrogen.
- B.
Excess CO2 causes too much heat to be trapped in the earth's atmosphere.
- C.
A greenhouse plant receives too much fertilizer.
- 4.Select TWO (2) activities that are part of the NITROGEN CYCLE.
- A.
A. Photosynthesis turns CO2 into sugar
- B.
B. Respiration turns sugar into CO2
- C.
C. Animal waste can be converted by bacteria to form nitrates (NO3).
- D.
D. Nitrogen-fixing bacteria change nitrogen in the air (N2) to nitrates (NO3) for use.
- 5.Select TWO (2) events that are part of the CARBON CYCLE.
- A.
Nitrogen fixing bacteria change atmospheric nitrogen gas to nitrates.
- B.
Respiration turns sugar (C6H12O6) into CO2.
- C.
Eutrophication results from excess fertilizer.
- D.
Photosynthesis turns CO2 into sugar (C6H12O6).
- 6.
- A.
To make rain, sleet, and snow
- B.
To make proteins
- C.
To make living thing
- 7.Which process makes clouds?
- A.
Condensation
- B.
Precipitation
- C.
Evaporation
- D.
Runoff
- 8.Which TWO cycles use bacteria and fungi, which are decomposers, that help the cycle?
- A.
Water Cycle
- B.
Carbon Cycle
- C.
Nitrogen Cycle
- 9.What two things help to change nitrogen in the air to the correct form of usable nitrogen (nitrate)?
- A.
Burning
- B.
Bacteria
- C.
Lightning
- D.
Heterotrophs
- 10.Which problem is caused by an unbalanced Carbon Cycle?
- A.
Global Warming
- B.
Eutrophication
- C.
Flooding
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