Which of the following is true of fatty acids?
A) They are branched carboxylic acids containing 6 to 12 carbon atoms.
B) They are unbranched carboxylic acids containing 6 to 12 carbon atoms.
C) They are branched carboxylic acids containing 12 to 20 carbon atoms.
D) They are unbranched carboxylic acids containing 12 to 20 carbon atoms.
D
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Shoreline retreat is a natural process that humans have made worse in recent years. Which of the following is NOT a major factor in the rate at which shorelines move inland?
A. coastal development B. sea-level rise C. frequency of storms D. disruptions in sediment supply
Carnivores (secondary consumers) derive their energy from other animals and not directly from plants
Indicate whether the statement is true or false.
Deposits of a resource that have been identified and are commercially extractable at present prices are called:
A) reserves B) marketable deposits C) fossil fuels D) extractables E) foreign exchange earners
Thermally-generated eddies typically peak
a. ?at sunrise. b. ?around midnight. c. ?at sunset. d. ?at noon. e. in the afternoon.