What is an obstacle that threatens the possibility of future economic growth in the world?

A) diminishing energy supplies
B) resource limitations
C) environmental degradation
D) all of the above are obstacles
E) none of the above are obstacles


D

Environmental & Atmospheric Sciences

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Although many processes are involved, clearly combustion of fossil fuels is the most important factor driving the global increase in atmospheric ________ and thus global warming

A) ozone B) CFCs C) nitrates D) oxygen E) CO2

Environmental & Atmospheric Sciences

Which letter in this classification table indicates the position of basalt?

A. A B. B C. C D. D E. E

Environmental & Atmospheric Sciences

What is the discharge of a river that has an average width of 20 meters, an average depth of 5 meters, and an average velocity of 3 meters per second?

A. 150 cubic meters per second B. 100 meters squared C. 300 cubic meters per second D. 15 meters squared per second

Environmental & Atmospheric Sciences

The air in the eye of a hurricane ________, leaving the core clear and cloud-free.

A. rises, cools, and absorbs moisture B. rises, cools, and expels moisture C. sinks, warms, and expels moisture D. is stable E. sinks, warms, and absorbs moisture

Environmental & Atmospheric Sciences