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

Environmental & Atmospheric Sciences

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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

Environmental & Atmospheric Sciences

In the proportion f ~ T, the symbol T represents

A. Fahrenheit temperature. B. Celsius temperature. C. Kelvin temperature. D. all the above

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences

Adaptive management assumes that what seemed the best initial policy option will always remain so.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences