how does altitude affect air pressure and density? check all that apply. air is less dense on a mountaintop…

how does altitude affect air pressure and density? check all that apply. air is less dense on a mountaintop than at sea level. air pressure is lower at low altitudes. as you climb a mountain, air pressure increases. more force pushes on the air at the bottom of an air column. as you descend a mountain, air molecules are closer together.

how does altitude affect air pressure and density? check all that apply. air is less dense on a mountaintop than at sea level. air pressure is lower at low altitudes. as you climb a mountain, air pressure increases. more force pushes on the air at the bottom of an air column. as you descend a mountain, air molecules are closer together.

Answer

Brief Explanations:

  • Air density decreases with altitude, so air is less dense on a mountaintop than at sea - level.
  • Air pressure increases with decreasing altitude. So air pressure is higher at low altitudes, not lower. As you climb a mountain (increase in altitude), air pressure decreases, not increases.
  • The weight of the air above exerts more force on the air at the bottom of an air - column.
  • As you descend a mountain (decrease in altitude), air pressure increases and air molecules are closer together.

Answer:

A. Air is less dense on a mountaintop than at sea level. D. More force pushes on the air at the bottom of an air column. E. As you descend a mountain, air molecules are closer together.