Pretest Answers

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1
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What effects do wind patterns have on climate?

A
They cool Pacific waters and increase hurricane activity in the western Atlantic.
B
They move warm water toward the east.
C
They change the amount of precipitation in a region.
D
They carry warm or cooled water very long distances.
2
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What climate conditions occur during La Niña?

A
more hurricane activity and warmer Pacific waters
B
warmer Pacific waters and warmer winters
C
warmer winters and stronger prevailing winds
D
stronger prevailing winds and more hurricane activity
3

What are global wind patterns called?

A
local winds
B
El Niño
C
prevailing winds
D
La Niña
4

What negative effect occurs when there is a decrease in air quality?

A
faster evaporation of water in the soil
B
the melting of glaciers and polar ice caps
C
increased illnesses that result in a decrease in population
D
the drying out of fertile land, resulting in dust bowls
5

What major factors play a role in global warming?

A
decrease in human activity and normal climate conditions
B
decrease in human activity and natural factors
C
natural factors and human activity
D
natural factors and normal climate conditions
6

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
7

What moves toward the east during El Niño?

A
warm water
B
cold water
C
slow currents
D
fast currents
8

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

A
increase in carbon dioxide
B
increase in cloud cover
C
decrease of methane gas
D
decrease of nitrous oxide
9

Why is it commonly believed that carbon dioxide is responsible for global warming?

A
The warming effect associated with carbon dioxide has remained unchanged.
B
Carbon dioxide has a longer average lifetime in the atmosphere.
C
Other greenhouse gases amplify the effect of carbon dioxide.
D
Carbon dioxide levels in the Earth’s atmosphere have been steadily decreasing.
10

What climate condition occurs during El Niño?

A
dry heat throughout North America
B
warm water moving toward the coast of South America
C
flooding throughout North America
D
heavy rain moving toward the coast of South America

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