Air pressure is
a. gravity's pull on air molecules
b. higher the farther you are from earth's surface
c. about 5 lbs per square inch at sea level
d. difficult to measure

answer; the above answer to the above statement is (true)

bc blah

explanation:

bc blah

yes? sounds right, but you didn’t ask a question.

check for the pregnancy rating of drug. if its class c or d see if other alternatives