AnswersFL-2000310-Biology 1 BUnit Test

Human Impact on the Environment Answers

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1
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What are sustainable use practices?

A
any materials that exist in nature and that are used by humans
B
the managed consumption of natural resources to prevent their depletion or environmental destruction
C
the deployment of fossil fuels to environments that previously did not have access to such resources
D
ways in which individuals are able to conserve native animal and plant species
2
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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.
3

Scientists predict that we will eventually use up all available fossil fuels. Which list includes only fossil fuels?

A
wood, natural gas, and coal
B
natural gas, coal, and oil
C
wood, natural gas, and solar
D
coal, oil, and solar
4

Which is a sustainable practice?

A
operating wind farms
B
clear cutting
C
flood irrigation
D
overfishing
5

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.
6

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
7

A factory is emitting large amounts of CFCs into the atmosphere. How might this affect people?

A
increase in the rate of malaria breakouts
B
increase in the level of ocean water
C
increase in the rate of skin cancer
D
increase in the frequency of violent storms
8

Which results from an increase in the greenhouse effect?

A
continental shifts
B
wildfires
C
volcanic eruptions
D
global warming
9

Which type of pollution includes CFCs and smog?

A
land
B
air
C
water
D
volcanic
10

Which describes the greenhouse effect?

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

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