Answers MFISD ENVIRONMENTAL SYSTEMS B 22-23 CRUnit Test

Sustainability Answers

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Why are carbon dioxide concentrations expected to increase?

Carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase.

Carbon dioxide concentrations are expected to increase, because of an increase in agriculture.

Carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use.

All of the above

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How can recycling materials lead to environmental sustainability?

Recycling materials helps decrease the amount of new materials taken from the environment.

Recycling materials helps increase the rate of carbon sequestration.

By recycling materials, the amount of biomass available for energy purposes is increased.

All of the above

Which of the following energy sources is expected to have the least growth in the next 20 years?

hydroelectricity

coal

natural gas

nonhydro renewables

The use of _______ is expected to increase in the future.

coal

natural gas

renewable energy

all of the above

A local farmer began to follow a more sustainable practice. As a result, his levels of carbon emissions decreased by fifty percent. The soil quality will most likely

increase

decrease

stay the same

The chart below indicates the levels of three aquifers in a local community. Level of Input and Output in Three Aquifers AquiferInput and OutputAquifer 1Input: 360 gallonsOutput: 600 gallonsAquifer 2Input: 521 gallonsOutput: 500 gallonsAquifer 3Input: 200 gallonsOutput: 300 gallonsWhich best describes the aquifers?

Aquifers 1 and 3 may result in a reduced river flow.

Aquifer 2 may result in reduced surface water levels.

Aquifers 2 and 3 may result in decreased wetland and spring discharge.

Aquifer 3 may result in an increase in productivity.

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