Question 1

Greenhouse gases are best described as _______.

Accepted Answer

gases that trap energy from the sun in Earth's atmosphere

Question 2

Which of the following is not a manmade cause of global warming?

Accepted Answer

respiration

Question 3

Why was the concern over global cooling replaced with a concern over global warming?

Accepted Answer

Steady surface temperature increases were noted between the 1970's and 90's.

Question 4

Which of the following best explains why air pollution that was once blamed for global cooling is now considered responsible for global warming?

Accepted Answer

Scientists mistakenly thought pollution reflected sunlight and heat rather than absorbed it.

Question 5

Which of the following is not a theory supporting global warming?

Accepted Answer

Carbon dioxide is an insignificant greenhouse gas.

Question 6

Africa was covered by glaciers during the Pleistocene ice age.

Accepted Answer

false

Question 7

Human activities _______.

Accepted Answer

exacerbate the natural greenhouse effect

Question 8

Between 1940 and 1970 most scientists were already concerned about global warming.

Accepted Answer

false

Question 9

Which of the following continents was not covered by ice during the Pleistocene ice age?

Accepted Answer

Australia

Question 10

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

Accepted Answer

true

A History Of Global Climate Change

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