Which of the following is true of CFCs?
A) They are now the most dominant gases in the stratosphere.
B) They are now banned by international treaty.
C) They are not able to exist for long in the atmosphere.
D) They have disappeared in the atmosphere.
E) They are very toxic to humans.
Correct Answer:
Verified
Q1: Which of the following can be found
Q3: It is really improper to discuss or
Q4: Which of the following is NOT associated
Q5: The source of heating in the thermosphere
Q6: If one were 30 kilometers above sea
Q7: Nitrogen is the_ component of the atmosphere
Q8: The middle latitudes are dominated by wind
Q9: About 10,000 kilometers above the surface is
Q10: Vertical mixing and turbulence are most characteristic
Q11: Which of the following is an important
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