Moon's period about Earth is about 28 days. If the distance to the Moon were greater, the lunar month would be
A. less than 28 days.
B. about 28 days.
C. more than 28 days.
Answer: C
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Cost per unit of a good or services decline as the level of production increases. This is described as ________
A) discount rate B) opportunity cost C) economy of scale D) economic value E) profit
Which current flows north to south along the northeast coast of the United States?
A. Gulf Stream B. Labrador C. North Atlantic D. Canary E. North Equatorial
The major difference between breccia and conglomerate is
A. rounding of the grains B. composition of grains C. size of grains D. All of these choices are correct.
The Montreal Protocol was an international environmental treaty ________
A) that was not approved by the U.S. because many lawmakers did not believe in global climate change B) whose goal was to protect the ozone layer C) whose goal was to ban the proliferation of nuclear weapons D) that banned the sale and export of products made of ivory E) that banned the sale and export of invasive species