A warm front is said to exist when: A) invading cold air ...

[AEWBW]

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

[aham8f]

Answer to Question 1

D

Answer to Question 2

C

[AEWBW]

TYSM

[blakcmamba]

Thanks for the timely response, appreciate it