Natural Resources — Test Answers

24 verified answers
1
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Match each soil layer to its characteristic.

Answer:

contains decaying plant material|contains fewer nutrients and is more compact|unweathered, solid rock foundation|supports deep plant roots

2
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A wetland has been drained and paved over to make room for housing and a retail center. Which bacterial function is most likely to decrease?

A
the breakdown of organic matter into ammonium
B
the conversion of ammonia into nitrite
C
the return of nitrogen gas to the atmosphere
D
the fixation of nitrogen into ammonia
3

Determine whether each statement describes a microbial function or an environmental outcome of microbial activity.

Answer not available
4

If the peat bog’s temperature increased to 22°C , which outcome is most likely?

A
Methane production would stop entirely due to the higher temperature.
B
Methane production would stay low and microbial activity would remain unchanged.
C
DOC loss would decrease and methane production would drop further.
D
DOC loss would increase, and methane production might approach that of wetland sediment.
5

Which conclusion is best supported by the data in the table?

A
Wind energy is more stable than hydroelectric power but provides a lower total contribution annually.
B
Geothermal energy experiences significant seasonal fluctuations.
C
Hydroelectric power is about as stable as geothermal power but supplies a greater yearly output.
D
Solar energy is the most reliable renewable energy source year-round.
6

A developer is planning to build homes on land that includes a wetland. What is the most likely ecological concern?

A
Wetlands can be replaced by small ponds without issues.
B
Wetlands attract more rainfall than other areas.
C
Building near wetlands increases river water levels.
D
Draining wetlands may increase flooding and reduce habitats.
8

Using carbon dioxide emissions as the concern, arrange the fuels from highest to lowest environmental impact. Place the fuel with the greatest concern at the top of the list.

Answer not available
10

Classify each action based on whether it maintains or disrupts resource balance in forests.

Answer:

protecting old-growth trees,managing forests sustainably|rapid deforestation,clearing forests for mining

12

What is suggested about the relationship between surface water and unconfined aquifers?

A
Unconfined aquifers create surface lakes.
B
Surface water can recharge unconfined aquifers.
C
Unconfined aquifers are isolated from the surface.
D
Aquifers only flow into rivers, not lakes.
14

Why did the rail closure make natural gas shortages more severe?

A
Gas-fired power plants required coal shipments for backup fuel.
B
Gas plants had to run harder to compensate, draining storage further.
C
Coal plants immediately switched to using renewable energy.
D
Oil shipments were halted to prioritize natural gas distribution.
20

Why might the cleared farmland have reduced ability to support nitrogen cycling?

A
It grows trees too rapidly.
B
It lacks soil organisms and plant roots.
C
It has too much plant cover.
D
It absorbs too much water.

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