Human Events and the Environment Answers

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Explain how tillage has negative effects on the environment.

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2
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Predict the likely effect of continued deforestation on plant and animal life.

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3

Fertilizer in waterways can lead to an increase in _______.

A
nitrogen
B
phosphorus
C
algae
D
all of the above
4

Explain how the use of fertilizer can have a negative impact on the environment.

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5

Explain how the Earth’s surface can change as a result of global warming.

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6

How does sedimentation affect bodies of water?

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7

Sedimentation accumulation found in bodies of water can be the result of _______.

A
fertilizer runoff
B
pesticides and herbicides
C
erosion from agricultural practices
D
all of the above
8

Continued deforestation will most likely lead to _______.

A
a decrease in the number of endangered species
B
an increase in the number of endangered species
C
an increase in the number of oil and chemical spills
D
a decrease in glacial melting
9

Siphoning of wetlands in Iraq has led to _______.

A
rising sea levels
B
drought
C
an increase in biodiversity
D
them becoming arid desert
10

Polluted water can contribute to _______.

A
drought
B
increased CO2
C
deforestation
D
glacial melting

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