AnswersGV 2019 - MPS Environmental Science Semester 2 SC631Issues Affecting Marine Ecosystems

Issues Affecting Marine Ecosystems — Unit test Answers

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1
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Which two layers of the atmosphere are responsible for the majority of solar radiation absorption?

A
stratosphere and troposphere
B
stratosphere and thermosphere
C
troposphere and thermosphere
D
troposphere and mesosphere
2
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A heat source could be considered a source of pollution..

A
T
B
F
3

Landfill waste results in air pollution as _______.

A
garbage decomposes and releases methane
B
radon trapped in garbage is released
C
paint and hairspray cans break down
D
vandals set fire to flammable waste
4

Which of the following would most likely utilize a particulate control device?

A
a vacuum cleaner
B
a factory smokestack
C
a laundry dryer
D
all of the above
5

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6

Aquifers are _______.

A
located below the water table
B
important sources of freshwater
C
located in the saturated zone
D
all of the above
7

Ozone located in the troposphere is _______.

A
considered a pollutant
B
beneficial to living organisms
C
higher in concentration than ozone in the stratosphere
D
all of the above
8

Which of the following groups of people would be the least affected by air pollution?

A
people with asthma
B
infants
C
teenagers
D
the elderly
9

Groundwater overdraft occurs when _______.

A
the location of the water table changes due to season
B
aquifers become polluted
C
the rate of use exceeds the rate of replenishment
D
trees are planted
10

Air pollution only occurs as a result of human activity.

A
T
B
F
11

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12

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13

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14

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15

Australian aborigines could not use wells in the desert due to lack of groundwater.

A
T
B
F
16

Changing your toilet can reduce water pollution because _______.

A
the sewage is partially treated in the toilet before entering the sewer system
B
chemicals added by new toilets neutralize the pathogens in the water
C
more efficient plumbing uses more water and creates larger volumes of waste
D
more efficient plumbing uses less water and creates smaller volumes of waste
17

Halogens are destructive to ozone because they are highly reactive with oxygen.

A
T
B
F
18

Ozone forms near the ground when pollutants from cars are exposed to UV radiation and oxygen. This is an example of a _______.

A
primary pollutant
B
secondary pollutant
C
tertiary pollutant
D
none of the above
19

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20

Acid rain is the direct result of acid released by burning fossil fuels.

A
T
B
F

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Issues Affecting Marine Ecosystems