Coal supplies ____ of the electricity generated in the United States
a. 54%
b. 34%
c. 44%
d. 24%
e. 84%
A
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Which statement describes step-growth polymerization?
A) the opening of a double bond B) the reaction of a difunctional molecule with a monofunctional molecule C) the reaction of two difunctional molecules with each other D) None of these is step-growth polymerization.
What are two "hidden" contributions to economic development in Africa?
A) female entrepreneurs, civil service B) remittances, street vendors C) telecommunications, urban agriculture D) remittances, telecommunications E) civil service, untaxed housekeepers
Based on the average of your five answers in problem 1, what has been the approximate rate of movement of the Pacific Plate in the area of the Hawaiian Islands over the last 5.1 million years?
A wind is named for the direction toward which it blows
a. True b. False Indicate whether the statement is true or false