The number of very strong hurricanes has increased by ____ in the past three decades.
A) 50%
B) 100%
C) 25%
D) 120%
Correct Answer:
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Q16: Energy reserves differ from energy resources in
Q17: If all human activities that generated carbon
Q18: Which of the following will not reduce
Q19: Between 1930 and 2000,global population rose by
A)100%.
B)50%.
C)300%.
D)250%.
Q20: In 1985,a large hole in the ozone
Q22: Which of the following is in the
Q23: Sulfur gases in the atmosphere react with
Q24: Global change induced by human activity is
Q25: Natural gas emits _ less carbon dioxide
Q26: Nuclear energy is produced by
A)the fusion of
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