AnswersSC332 Environmental Science BClimate and Change in Ecosystems

Climate and Change in Ecosystems — Unit test Answers

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Manmade global warming is caused by _______.

A
pollution
B
water vapor
C
farms
D
species extinction
2
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Where is over 95% of incoming ultraviolet radiation absorbed?

A
the stratosphere
B
the mesosphere
C
the troposphere
D
the thermosphere
3

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
4

Which of the following best describes the impact of glaciers upon the surface of the earth?

A
Ice buried continents under a few hundred feet of ice.
B
Glaciers scraped across the surface and altered landscapes and the course of rivers.
C
The passage of glaciers created new ecosystems.
D
All of the above.
5

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

A
T
B
F
6

Which of the following theories concerning global climate change is the most widely accepted?

A
Changes in the global climate will lead to an increase in extreme weather and flooding.
B
Global climate is changing due to burning of fossil fuels and deforestation.
C
Global climate change will happen rapidly.
D
Extra carbon dioxide and global warming will be beneficial.
7

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
8

Which of the following predictions about global climate change is directly related to an increase in the burning of fossil fuels?

A
increased extreme weather
B
decreased food supply
C
global warming
D
falling sea levels
9

Which of the following would not cause habitat change?

A
building a dam on a river
B
a hurricane
C
introducing new hiking trails
D
none of the above
10

Error

Answer not available
11

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
12

Which of the following is(are) non-technological ways of improving air quality?

A
using public transportation
B
building wind turbines
C
turning lights off when leaving a room
D
both a and c
13

Which of the following best explains why deforestation increases the risk of floods in an area?

A
Tree leaves catch and retain rain water.
B
Trees block the free flow of water.
C
Deforestation increases precipitation.
D
Tree roots improve soil water retention.
14

Hurricanes are more destructive than tornados due to _______.

A
coastal storm surges
B
their shorter duration
C
the combination of high winds and flood waters
D
all of the above
15

Global warming is a theory accepted by a majority of scientists.

A
T
B
F

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