Globally, almost 80% of all primary energy for today's economies comes from ________
A) fossil fuels
B) hydropower installations
C) biofuels
D) nuclear power
E) solar, wind, and ocean tides and waves
Answer: A
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In the proportion f ~ T, the symbol T represents
A. Fahrenheit temperature. B. Celsius temperature. C. Kelvin temperature. D. all the above
Adaptive management assumes that what seemed the best initial policy option will always remain so.
Answer the following statement true (T) or false (F)
It is estimated that roughly ________ or more of all material dumped at sea is dredged material from ports and waterways.
A. 35 percent B. 50 percent C. 75 percent D. 25 percent E. 10 percent
Which of the following is not presently one of the three largest migration flows in the world?
A) to Europe from Asia B) to Europe from Africa C) to North America from Asia D) to North America from Latin America