Question

air pressure is the pressure in a given area caused by the weight of the atmosphere pressing down on that area. the column of air that extends above an area contains the weight of all of the molecules above that area. (this invisible column extends up through all the levels of the atmosphere.) for this reason, altitude affects air pressure. the column of air that extends from the bottom of the ocean (sea - level) is very tall, with the weight of the whole atmosphere pressing on it. consequently, the air pressure at sea level is high. the opposite is true at a high altitude, such as at the top of mount everest. there, the column of air pressing down is shorter, so air pressure is lower.
match cause with their effects.
air pressure is highest.
air pressure is lowest.
cause
altitude is lowest, such as at sea level.
altitude is highest, such as at the top of mount everest.
effect

Explanation:

The text states that air pressure is affected by altitude. Lower altitude (like at sea - level) has a taller column of air pressing down, resulting in higher air pressure. Higher altitude (like at the top of Mount Everest) has a shorter column of air pressing down, resulting in lower air pressure.

Answer:

• Air pressure is highest: Altitude is lower, such as at sea - level.
• Air pressure is lowest: Altitude is highest, such as at the top of Mount Everest.