Major fisheries are concentrated in the neritic zone (above the continental shelf) because of all of the following except ________
A) there are rapid changes in oxygen concentrations, temperature, and salinity that encourage diversity
B) nutrients wash in from land
C) the sea bottom provides shelter and habitat
D) there is an abundance of sunlight to support photosynthesis
A
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Subsistence agriculture is designed mainly to generate products for sale off the farm
Indicate whether the statement is true or false.
Addition across the double bond of a fatty acid results in which of the following?
A) putting a hydroxyl group on the a-carbon B) putting a hydroxyl group on the b-carbon C) putting hydroxyl groups on both the a- and b-carbons D) putting a hydroxyl group on either the a- or b-carbon, depending on the identity of the original fatty acid
Which is a geologic hazard?
A. volcano B. wave erosion at coastlines C. mudflows D. floods E. earthquake F. landslides G. All of these choices are correct.
Clear sunny days with very cold nights would be associated with what type of air mass?
a. mP b. mT c. cP d. cT e. mA