Which of the following is true regarding day length?
A) The equator experiences at least six-hours difference in day length from winter to summer.
B) Day length varies more at the equator than at higher latitudes.
C) Nowhere on Earth does day length vary by as much as 24 hours.
D) The poles have the smallest variation in summer and winter day lengths.
E) The people living at 40° N or S experience about six-hours difference in daylength from winter to summer.
E
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When the EPA began risk assessment in the mid-1970s, it was primarily concerned with
A) the safety of public transportation systems. B) interactions between people and wildlife in national parks. C) cancer risks associated with pesticides and toxic chemicals. D) accidents associated with lost time on the job and workers' compensation.
The interpretation of a halo around the Moon as a sign of impending rain (or snow) stems from:
A) the geometry of the Moon's size and distance. B) halos being present only when clouds are thick. C) a false weather proverb. D) the association of cirrus clouds with cyclonic storms.
A dam built to store water for irrigation may lead to high reservoir levels behind the dam and too little remaining water storage in the reservoir to prevent downstream flooding during high rainfall or snowmelt
a. True b. False
According to the U.S. Food and Drug Administration who can eat low to moderate amounts of swordfish, shark, king mackerel, and tilefish with little concern?
A) Male college students B) Nursing mothers C) Pregnant women D) Women of childbearing age E) Young children