How does the density of air in Death Valley, which is 86 meters ...

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How does the density of air in Death Valley, which is 86 meters below sea level, compare with the density of air at sea level?
 
  A) The density is about the same because the density of air is greatest at sea level.
  B) The atmospheric pressure in Death Valley may be greater, but not necessarily the air density.
  C) It would depend upon the temperature within Death Valley.
  D) The air density you experience in Death Valley is greater because there are more air molecules above you.

Question 2

What is the trend in atomic size in the series of Group IIA elements Be through Ra?
 
  A) Atomic size increases in this series.
  B) Atomic size decreases in this series.
  C) Atomic size remains unchanged in this series.
  D) Atomic size increases at first, then decreases in this series.

[fauacakatahaias]

Answer to Question 1

D

Answer to Question 2

A

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