AnswersSC332 Environmental Science BClimate and Change in Ecosystems

Week 9 Test Answers

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1
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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.
2
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Natural disasters can have positive effects on an ecosystem.

A
T
B
F
3

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
4

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
5

Manmade global warming is caused by _______.

A
pollution
B
water vapor
C
farms
D
species extinction
6

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.
7

Rising sea levels are a possible global consequence to a change in local environments.

A
T
B
F
8

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

A
T
B
F
9

Which of the following is not a consequence of the onset of early spring events?

A
flowering
B
acidic ocean water
C
fruit ripening
D
hatching eggs
10

Greenhouse gases are best described as _______.

A
the result of fossil fuel use
B
gases that cause the greenhouse effect
C
carbon dioxide and methane
D
gases that trap energy from the sun in Earth’s atmosphere
11

Which of the following is an example of a long-term change to ecosystems?

A
seasons
B
tide cycle
C
evolution
D
population growth
12

Compare the benefits of natural change to ecosystems to the disadvantages.

Answer not available
13

In New Hampshire, the length of time ice covers on Mirror Lake each year has declined by _______.

A
1/2 day per year
B
1 day per year
C
1 1/2 days per year
D
2 days per year
14

Explain why organisms that have a narrow temperature tolerance range will be more susceptible to climate change.

Answer not available
15

Explain how scientists can have multiple theories about the effects of global warming.

Answer not available

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