Unit Test — Unit test Answers

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1
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What two countries have nearly 50% of global coal reserves?

A
United States and Canada
B
United States and Russia
C
Brazil and Russia
D
Brazil and Canada
3

Which of the following statements about nuclear energy is true?

A
Nuclear energy cannot be contained nor controlled.
B
Nuclear energy is contained in nuclear bonds.
C
Nuclear energy is less efficient than other energy forms.
D
All of the above are true.
4

Cyanobacteria have been engineered to produce isobutanol directly. What advantage does this have over other alternative biofuels?

A
It is an inherently renewable fuel source.
B
Multiple processing steps can be avoided.
C
They produce chemical energy through photosynthesis.
D
They make a biofuel alternative to gasoline.
5

Which of the following statements about resource use is true?

A
The use of renewable resources has no inherent costs.
B
Resource use, whether renewable or nonrenewable, must be carefully managed to reduce the impact on the environment.
C
Nonrenewable resources are used for energy, because there are no renewable resources that can be used as a source of energy.
D
The overuse of nonrenewable resources is less environmentally damaging than the overuse of renewable resources.
6

Which of the following statements about using geothermal energy is not true?

A
Geothermal energy can be used to fuel vehicles.
B
Geothermal energy can be used as a source of electricity.
C
Geothermal energy can be used as a source of heat.
D
Geothermal energy is a renewable resource.
7

Which of the following is true concerning natural resources?

A
Natural resources are not recycled.
B
Natural resources are only inorganic.
C
They are part of natural processes.
D
They only incorporate one form of matter.
10

Which of the following statements about paper recycling is not true?

A
Recycling one ton of newspaper can save 100 trees.
B
Recycling paper can lead to 74% less air pollution.
C
Paper recycling can save on the use of water resources.
D
Recycling paper can lead to 35% less water pollution.
11

How can reduced precipitation lead to limited water availability?

A
Reduced precipitation leads to overuse.
B
Precipitation is a nonrenewable resource.
C
Reduced precipitation is a global event.
D
Reduced precipitation may lead to drought.
12

Which of the following statements about the use of nuclear energy is true?

A
Nuclear energy cannot be used safely.
B
Nuclear fusion has no known useful applications.
C
Nuclear fission is currently more useful for producing energy than nuclear fusion.
D
Nuclear fusion has fewer safety risks than nuclear fission.
15

Fossil fuels are an important natural resource used by society. Which of the following best describes fossil fuels?

A
They are any liquid fuel derived from once-living matter.
B
They are organic fuels derived from ancient plants and animals.
C
They are fuels in which dinosaur fossils are commonly found.
D
They are naturally occurring inorganic fuels like coal and petroleum.
16

Which of the following results in the release of nuclear energy? Please select the best answer from the choices provided

A
Only the breaking of nuclear bonds.
B
Only the forming of nuclear bonds.
C
Both the breaking of nuclear bonds and the forming of nuclear bonds.
D
Neither the breaking of nuclear bonds nor the forming of nuclear bonds.
17

Which of the following is true about glass recycling?

A
Recycling glass reduces the rate of deforestation.
B
Recycling glass eliminates greenhouse gas emissions.
C
Recycling glass is an energy-saving practice.
D
Recycling glass has an incredibly short turn around time.
18

Water would be considered a(n) _______.

A
potential renewable resource
B
potential nonrenewable resource
C
actual renewable resource
D
actual nonrenewable resource
19

How is the heat generated by the reactor core of a nuclear power plant used to provide power to buildings?

A
It is used directly to heat homes and offices.
B
It generates steam, which turns a turbine, powering a generator.
C
It generates steam, which is then condensed back to water. This process produces energy.
D
All of the above
20

The natural resources used by society are limited by various factors. Why is coal considered a nonrenewable resource?

A
Once coal is used up, it can never be replaced.
B
Coal is a nonrenewable resource, because it comes from the impact of meteors with the Earth.
C
Coal was a renewable resource, until it was mismanaged by humans.
D
Coal is considered a nonrenewable resource, because it takes millions of years to form.

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