Author Question: A warm front is said to exist when: A) invading cold air pushes underneath warmer air. B) warm ... (Read 82 times)

AEWBW · **on:** Jul 14, 2018

A warm front is said to exist when:

A) invading cold air pushes underneath warmer air.
B) warm air pushes underneath cold air.
C) moving cold air overrides warmer air.
D) advancing warm air overrides retreating cold air.

Question 2

Which of these is LEAST important in determining the level of air pollution from a particular source?

A) height of stack used B) stability of the air layer
C) relative humidity at ground level D) prevailing wind speed and direction