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Global Change Answers

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1
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Why are there different theories about the effects of global warming?

A
There is no data to support global warming.
B
Global climate is complex, so changes in global climate are hard to predict.
C
Increased levels of carbon dioxide are offset by other changes.
D
There has been a decrease of extreme weather.
2
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Which of the following is not a current theory regarding global climate change?

A
Global warming will stimulate crop growth.
B
Even the moderate projections on global warming will cause devastation.
C
Higher levels of carbon dioxide in the atmosphere will have no effect.
D
Sea levels will rise as a result of global warming.
3

It is not possible for global warming to have any positive side effects.

A
T
B
F
4

Which of the following statements about current theories on global warming is true?

A
Scientists generally agree that global warming is taking place.
B
Some scientists think that we should accelerate global warming.
C
The scientific community disagrees about whether we should take action about global warming.
D
Cutting down trees and burning fossil fuels does not lead to global warming.
5

Some scientists believe that global warming will lead to an increase in disease and starvation.

A
T
B
F
6

The scientific explanation for global warming is very dependent on the _______ atom.

A
chlorine
B
carbon
C
oxygen
D
hydrogen
7

How can local environmental changes have global effects?

A
Organisms can move from one environment to another.
B
Air and water move from region to region.
C
Increased carbon dioxide in one location can cause increased temperatures in other locations.
D
All of the above are true.
8

Which of the following is not a possible effect of increasing carbon dioxide levels in the atmosphere?

A
increase in water contamination and floods
B
ocean acidification
C
cutting down forests
D
reduction of cold-related deaths
9

Scientists disagree about the possible effects of global warming.

A
T
B
F
10

Which of the following is a way that studies have determined industry might be affected by legislation on global warming?

A
creation of new jobs and technology
B
decrease in consumer spending
C
increased costs of production
D
reduction in the number of jobs available

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