Clouds form by convection because:
a. the rising air warms adiabatically, becomes saturated and condenses.
b. topography forces the air upward.
c. the rising air cools adiabatically, becomes saturated and condenses.
d. None of these choices.
Question 2
Atmospheric instability is caused by:
a. warming the surface air and cooling the air aloft.
b. warming the air at the surface and aloft.
c. cooling the air at the surface and aloft.
d. cooling the surface air and warming the air aloft.