Neap tides occur ________.
A. once a month when the Earth-Sun and Earth-Moon lines are at an angle of 45° to each other
B. twice a month when the Earth, Sun and Moon are fully aligned
C. once a month when the Earth, Sun and Moon are fully aligned
D. once a month when the Earth-Sun and Earth-Moon lines are at a right angle to each other
E. twice a month when the Earth-Sun and Earth-Moon lines are at a right angle to each other
Answer: E
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Which of the following exerts the greatest pressure?
A) a 20 gram object on a surface of 0.50 cm2 B) a 40 gram object on a surface of 2.0 cm2 C) a 60 gram object on a surface of 3.0 cm2 D) None, they all exert the same pressure.
The oil company responsible for the oil spill of the Valdez was ____.
A. Alaska B. Gulf C. Exxon D. Sunoco E. Texaco
In what way were humans influencing climate prior to the Industrial Revolution?
A) hunting and gathering excessively B) gathering wood for individual cooking fires C) alteration of ground cover for grazing and agriculture D) releasing CO2 by burning large quantities of coal