AnswersFL-2001340-Environmental Science BHuman Impact on the Environment

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Which results from an increase in the greenhouse effect?

A
continental shifts
B
wildfires
C
volcanic eruptions
D
global warming
2
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Which of the following substitutions can help reduce air pollution?

A
using a bike instead of a car
B
using dumps instead of landfills
C
using coal instead of oil
D
using fireplaces instead of a wind farms
3

Which describes the greenhouse effect?

A
an artificial process
B
a dangerous process
C
a natural process
D
a new process
4

Freshwater can be renewed, but environmentalists consider it nonrenewable. Why is there a contradiction in classification?

A
Freshwater is recycled through the use of irrigation, bathing, and everyday use.
B
Freshwater is easily polluted or depleted before it can be replaced.
C
Freshwater evaporates and condenses, and then precipitation returns it to the lakes.
D
Freshwater is highly affected by global warming, and is quickly evaporating.
5

Which is a sustainable practice?

A
operating wind farms
B
clear cutting
C
flood irrigation
D
overfishing
6

Which is a consequence of global warming?

A
cooling oceans
B
growing glaciers
C
less frequent hurricanes
D
rising sea levels
7

Why are invasive species dangerous to the environment?

A
They pollute the environment.
B
They are all voracious predators.
C
They threaten biodiversity.
D
They are nonrenewable.
8

Which gases contribute to the greenhouse effect?

A
nitrogen and helium
B
carbon dioxide and methane
C
carbon dioxide and helium
D
nitrogen and methane
9

As the human population grows, what happens to our natural-resource requirements?

A
They increase.
B
They decrease.
C
They do not change.
D
They go in cycles.
10

Which is a nonrenewable resource?

A
soil
B
fish
C
wood
D
coal

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