CFCs take _____ years to reach the stratosphere.
a. 1-2
b. 5-10
c. 10-20
d. 20-30
e. 30-50
Answer: C
CFCs take _____ years to reach the stratosphere.
a. 1-2
b. 5-10
c. 10-20
d. 20-30
e. 30-50
Answer: C
AP Environmental Science MCQ
AP Environmental Science Chapter 19
CFCs take _____ years to reach the stratosphere.
a. 1-2
b. 5-10
c. 10-20
d. 20-30
e. 30-50
Answer: C
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