Week 6: Minerals and Mining Answers

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1
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Compare surface, subsurface, and placer mining in terms of damage to the environment.

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2
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Which of the following is not a possible consequence of surface mining?

A
increased pollution
B
improved ecosystem health
C
destruction of flora and fauna
D
erosion of soil
3

Explain why mining has such a large impact on the environment.

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4

Which of the following statements about large scale mineral extraction is true?

A
The economic benefits of large scale mineral extraction outweigh the environmental costs.
B
Large scale mineral extraction is more destructive than in the past.
C
Large scale extraction is vital to the economy of mining towns.
D
Mineral extraction cannot be done in ways that do not completely destroy the environment.
5

The long term effects of mining include _______.

A
acid drainage
B
erosion
C
dust emissions
D
all of the above
6

Predict what will happen to an abandoned strip mine over time.

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7

What are three ways that minerals are used?

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8

Explain how surface mining affects plant life.

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9

Placer mining involves _______ to extract minerals.

A
removing the top layer of earth
B
tunneling under the earth
C
dredging sediments from the water bottom
D
none of the above
10

Which of the following is an example of a nonmetallic mineral?

A
sulfur
B
lead
C
aluminum
D
gold

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