AnswersCPS Online Biology fall – 1-2027The Importance of Water

The Importance of Water — Unit test Answers

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1
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Which of the following factors can lead to desertification in the presence of natural drought?

A
deforestation
B
sustainable grazing
C
underground mining
D
all of the above
2
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How is the environment affected by a large-scale oil spill?

A
Large-scale oil spills are the largest contributor to air pollution.
B
Large-scale oil spills lead directly to wetlands becoming deserts.
C
Large-scale oil spills are damaging to water quality, aquatic life, and bird populations.
D
Large-scale oil spills can lead to an increase in sea levels through glacial melting.
3

Environmental catastrophes can cause changes to the Earth’s surface.

A
T
B
F
4

Tillage can release pollutants in the soil and

A
increase erosion.
B
decrease erosion.
C
promote soil compaction.
D
promote fertilizer retention.
5

What is the purpose of the Climate Friendly Farming Project?

A
close down farms that do not follow climate friendly practices
B
decrease the number of agricultural facilities by 1/3 in ten years
C
create a database of climate friendly agricultural practices
D
convert all farms to climate friendly practices
6

How can fertilizer use be detrimental to the environment?

A
It can enter waterways, causing them to accumulate an excess of nutrients.
B
High levels of fertilizer in bodies of water can lead to excess algal growth.
C
Fertilizer can lead to oxygen depletion, and be harmful to organisms in waterways.
D
All of the above
7

Which of the following was an environmental consequence of the nuclear meltdown at Chernobyl?

A
evacuation of Pripyat
B
high levels of radiation
C
increased CO2 levels
D
none of the above
8

What sometimes occurs when reclaimed water is used in agriculture?

A
crop death
B
overtillage
C
pharmaceutical accumulation
D
increased land use
9

How can global warming lead to changes to the Earth’s surface?

A
Global warming can lead to an increased number of earthquakes, which change the Earth’s surface.
B
Global warming can lead to glaciers melting, causing flooding to areas and the decrease of glacial land masses.
C
Global warming leads to a decrease in water levels of coastal wetlands.
D
Global warming cannot lead to changes to the Earth’s surface.
10

Which choice is an example of an effect of agricultural techniques on the environment?

A
increased oxygen levels in a pond due to fertilizer runoff
B
sediment accumulation in a lake near a farm
C
soil compaction caused by tillage
D
increased plant growth caused by application of herbicides

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