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Climate Change Answers

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1
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What climate condition occurs during El Niño?

A
dry heat throughout North America
B
warm water moving toward the coast of South America
C
heavy rain moving toward the coast of South America
D
flooding throughout North America
2
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What effects do wind patterns have on climate?

A
They move warm water toward the east.
B
They change the amount of precipitation in a region.
C
They carry warm or cooled water very long distances.
D
They cool Pacific waters and increase hurricane activity in the western Atlantic.
3

Which is a possible result of higher air temperatures caused by climate change?

A
decrease in strength of hurricanes
B
freezing of polar ice caps
C
rapid evaporation of water in the soil
D
increase in human population numbers
4

Which statement explains why many scientists believe that carbon dioxide has likely contributed more to global warming than other greenhouse gases?

A
Carbon dioxide is emitted from fertilizers used in farming.
B
Other greenhouse gases trap more heat than carbon dioxide.
C
Carbon dioxide has increased as a result of increased human activities.
D
Carbon dioxide is emitted from commercial refrigeration.
5

What moves toward the east during El Niño?

A
warm water
B
cold water
C
slow currents
D
fast currents
6

According to some scientists, which is a cause of global warming?

A
decrease of nitrous oxide
B
increase in cloud cover
C
decrease of methane gas
D
increase in carbon dioxide
7

Which is a possible result of rising ocean temperatures caused by global warming?

A
formation of dust bowls
B
increase in strength of hurricanes
C
rapid evaporation of water in soil
D
decrease in population due to health threats
8

Which statement best describes the greenhouse effect?

A
It is a process by which plants are able to grow well in a warm, enclosed structure.
B
It is a process by which greenhouse gases block the sun’s light to penetrate the atmosphere.
C
It is a process by which greenhouse gases allow the sun’s light to penetrate the atmosphere but stop the heat from escaping.
D
It is a process by which prevailing winds bring moisture to the land, to the prevailing wind direction.
9

Which greenhouse gas is produced by commercial refrigeration and air conditioning systems?

A
carbon dioxide
B
fluorinated gas
C
nitrous oxide
D
methane
10

Which definition best describes global warming?

A
a long-term change in the Earth's climate
B
a long-term increase in the Earth's average temperature
C
a long-term change in the climate of a region or a city
D
solar heat that is radiated out into space

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