Changing Waterways Answers

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21
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The majority of the debris found in the garbage patch is _______.

A
large plastic bottles
B
sewage
C
trash from landfills
D
small pieces of plastic
22
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Which of the following is a source of water pollution?

A
sewage
B
oil spills
C
fertilizers
D
all of the above
23

Which of the following is an effect of fossil fuel emission on oceans?

A
decreased pH
B
decreased carbonate concentrations
C
increased CO2 absorption
D
all of the above
24

Over time, most lakes grow larger due to erosion.

A
T
B
F
25

Which of the following practices could help reduce erosion of water banks?

A
buffer strips
B
natural fertilizers and pesticides
C
decrease in fossil fuel emissions
D
all of the above
26

Which of the following methods would help decrease marine pollution?

A
government regulation of agriculture
B
government regulation of industry
C
reduction in chemical use
D
all of the above

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