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RS/REHS Exam Questions with Verified Answers Part 47
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RS/REHS exam questions and answers for practice and focused revision.
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c. it helps in retaining a constant earth temperatured. it helps diffuse carbon dioxide in the atmosphere
it protects life forms from solar ultraviolet radiation
Question 10
The most serious threat to the ozone layer is:
a. chlorofluorocarbons
b. jet airplane travel
c. emissions from automobile exhaust
d. use of nitrogen fertilizers
chlorofluorocarbons
Question 11
The "hole in the sky" was first found over:
a. The US
b. Russia
c. The South Pole
d. Europe
The South Pole
Question 12
The main component of the Montreal Protocol was the:
a. elimination of the use of nitrogen-base fertilizers
b. cutting back and eventually eliminating the use of chlorofluorocarbons
c. increasing research related to the ozone layer depletion
d. decreasing subsidies to companies that pollute the air
cutting back and eventually eliminating the use of chlorofluorocarbons
Question 13
The historical significance of the Montreal Protocol is:
a. the agreement among nations of the world to work together to prevent a disaster of global proportions
b. it represented an international response to a public outcry
c. it eliminated halon production from the world
d. it stopped the expansion of the "hole in the sky"
the agreement among nations of the world to work together to prevent a disaster of global proportions
Question 14
Which one of the following is not one of the major atmospheric gases?
a. oxygen
b. ozone
c. argon
d. nitrogen
, ozone
Question 16
Perhaps one of the greatest environmental issues of the late 20th century will be:
a. depletion of the ozone layer
b. the Greenhouse Effect
c. increased use of chlorofluorocarbons
d. increased amount of oxygen in the atmosphere
the Greenhouse Effect
Question 17
Nearly 1/4 of all global carbon dioxide emissions are the result of
a. automobile emissions
b. decreased use of lead-based aviation fuels
c. deforestation
d. increased world-wide industrialization
deforestation
Question 18
Concern over increased carbon dioxide levels in the atmosphere revolve around issues of
a. human health
b. air pollution
c. plant destruction
d. global temperature
global temperature
Question 19
The Greenhouse Effect is being enhanced by the increase of all the following gases in the atmosphere except:
a. methane
b. oxygen
c. nitrous oxide
d. carbon dioxide
oxygen
Question 20
Which one of the following is potentially the most important in terms of global warming?
a. carbon dioxide
b. nitrous oxide
c. methane
d. chlorofluorocarbons
methane
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