Environmental Engineering Reference
In-Depth Information
74.
D
75.
C
76.
A
77.
C
78.
B
79.
B
80.
D
81.
B
82.
C
83.
C
84.
A
85.
A
86.
B
87.
C
88.
B
89.
D
90.
A
91.
E
92.
C
93.
B
94.
E
95.
C
96.
D
97.
B
98.
B
99.
E
100.
C
Answer Explanations
Section I: Multiple-Choice Questions
1.
B
The Montreal Protocol was a very successful international agreement to reduce CFCs, signed in 1987.
It required participating nations to reduce CFC emissions by half. As a result, the ozone layer has been
recuperating throughout the past two decades.
