The unit of electric charge, the coulomb, is the charge on
A) one electron.
B) a specific large number of electrons.
B
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What kind of economic system does the United States have?
A. It converts high quality matter and energy into waste and pollution. B. It strives to conserve resources at the expense of economic growth. C. One in which the cost of goods and services reflects their environmental impacts. D. One in which the main goal is the long term sustainability of resources.
Which of the following statements regarding pH is true?
A) A pH of 10 is acidic, and a pH of 3 is alkaline. B) As a whole, the pH of the ocean is slightly acidic. C) Buffers accelerate large changes in the pH of a solution. D) pH will change in deeper water when organisms with calcite shells sink. E) pH relates to relative acid-base ion balance in a solution.
One of the lessons of U.S. population and housing expansion after World War II was that the building of single-family homes is an efficient way of housing a population
Indicate whether the statement is true or false.
A defective gene for adenosine deaminase results in which of the following?
A) a buildup of dATP B) buildups of dATP, dCTP, dGTP, and dTTP C) a deficiency of dATP D) deficiencies of dATP, dCTP, dGTP, and dTTP