Which of the following describes the relative humidity when wet haze can form?
A. as low as 50%
B. as low as 75%
C. as low as 10%
D. as low as 25%
Answer: B
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Which of the following least reflects environmentally ethical guidelines regarding individual responsibility?
A. We should not waste resources. B. We should not inflict unnecessary pain on other species. C. We should leave the earth in as good or better shape than we found it. D. We should make ourselves and our families as comfortable as possible. E. We should acknowledge that every species has an intrinsic right to life.
Which of the following conditions will occur when an upper-level low lies directly above a surface low?
A. Thunderstorms will develop. B. A wave cyclone will begin to form. C. The surface low will probably weaken. D. The pressure of the surface low will decrease.
The eutrophication that has taken place in Chesapeake Bay, the Gulf of Mexico, and other locations appears to be due to ________
A) weather alone, because it is only obvious in the summer B) pesticide use along the waterways C) global warming from human use of fossil fuels D) excess nutrients from fertilizers E) heavy metals dumped in the sewage
The Ogallala aquifer is an important resource in _____
a. the Sierra Nevada b. New England c. Michigan d. Florida e. the Great Plains (from Texas to South Dakota)