Since 1900 the world's population has increased by
A) about 50 percent.
B) about 100 percent.
C) about 200 percent.
D) over 400 percent.
Correct Answer:
Verified
Q3: Methane is the chief constituent of
A) natural
Q4: Solar radiation is ultimately responsible for
A) wind
Q5: The contribution of fossil fuels to world
Q6: The earth's atmosphere is mainly heated by
A)
Q7: Average energy use per person in the
Q9: Arrange these fuels in increasing order of
Q10: After electricity generation and heating, the next
Q11: An optimistic projection for 2100 suggests that
Q12: If present trends in population and greenhouse
Q13: Average energy use per person in the
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