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Author Question: Without the atmospheric greenhouse effect, the average surface temperature of Earth would be ___. A) ... (Read 257 times)

itsmyluck

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on: Jul 13, 2018
Without the atmospheric greenhouse effect, the average surface temperature of Earth would be ___.
 A) higher than at present
  B) lower than at present
  C) the same as it is now
  D) much more variable than it is now

Question 2

What is the most accurate description of the principle of a lightning rod?
 A) The lightning rod acts to discharge the thunderstorm.
  B) The lightning rod intercepts the lightning and safely carries the lightning current around the object it protects.
  C) Lightning rods have been used since the 1700s, but the principle of their operation is not known.
  D) A positive charge induced in the lightning rod repels the negative charge in an approaching step leader.


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strudel15

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Reply #1 on: Jul 13, 2018
Answer to Question 1

B

Answer to Question 2

B


itsmyluck

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Reply 2 on: Jul 13, 2018
Great answer, keep it coming :)

Joy Chen

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Reply 3 on: Yesterday
:D TYSM

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