The infiltration of water is greatest in
A) calcite-cemented sandstone.
B) sandy soil.
C) clay soil.
D) silica-cemented sandstone.
Answer: B
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The change in rotation rate of a spinning object caused by its size change is a consequence of
A. conservation of magnetic energy. B. the special theory of relativity. C. conservation of angular momentum. D. the law of action-reaction. E. None of these choices is correct.
Why is the Coriolis effect so weak on Venus?
A) because Venus rotates so slowly B) because Venus is so hot C) because Venus has such a thick atmosphere D) because Venus has such a strong greenhouse effect
The hydrogen absorption lines are the strongest in ________ type stars.
A. A B. B C. O D. G
A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.The resistance of the light bulb in ohms is
a. 0.05 b. 20. c. 720 d. none of the above.