The first consistent ocean traders were the:
A) Egyptians
B) Cretans
C) Greeks
D) Vikings
B
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The transfer of energy through food chains or webs is very efficient, thus making significant amounts of energy available to organisms.
Answer the following statement true (T) or false (F)
The orbital motion of a deep-water wave extends to a depth equal to ________.
A. the seafloor depth B. one-half the wavelength C. twice the wavelength D. one-half the wave's height E. the wave's height
Coal beds originate in ________
A) freshwater coastal swamps and bogs B) shallow lakes in a dry, desert region C) channels of fast-moving streams D) deep, marine basins below wave action
Which of the following is NOT an issue currently addressed by a U.S. environmental law?
A. air pollution B. climate change C. hazardous waste disposal D. water pollution