What is the pressure that a column of air exerts on the air or surface below it?
A: dew point
B: humidity
C: pressure
D: weather

Russia is to the east if germany ? true or false

Which events occurred during the space race? check all that apply. (a) nasa was established. (b) yuri gagarin orbited earth. (c) the soviet union launched salyut. (d) the united states launched skylab. (e) the united states launched explorer 1.

Where does the availability of water pose the greatest problem