Tropical rain forests cover about ____ of the earth's surface, but contain at least ____ of the known terrestrial plant and animal species.
A. 2%; 50%
B. 10%; 50%
C. 2%; 20%
D. 30%; 30%
E. 50%; 50%
Answer: A
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If sea level rose ?? m, would a major city within your state be flooded?
(Use the Zoom In tool if you need to see your state in more detail.) Even if you do not live in a city that would be flooded, how could flooding in other major cities affect you? What will be an ideal response?
Global climate change has increased the depth of permafrost thaw
a. True b. False
Which condition may result in surface subsidence?
A. Withdrawal exceeds recharge B. Withdrawal is less than recharge C. Withdrawal equals recharge
The 1994 Cairo, Egypt, conference was organized ________
A) to urge governments to better address social issues such as poverty, disease, and lack of education as potential sources of population problems B) to reevaluate the effectiveness of China's one-child policy C) to lower the world's population to preset targets by advocating the use of contraceptives D) by President Clinton to seek world funding for family?planning initiatives E) to address the growing AIDS epidemic in Africa