When a Pacific coast cyclone crosses the Rocky Mountains A) it ...

[Garrulous]

When a Pacific coast cyclone crosses the Rocky Mountains
 A) it gains strength while over the mountain range.
  B) it heads south.
  C) its relative vorticity increases on the east side of the mountain range.
  D) it spins down on the east side of the mountain range.
  E) all of the above

Question 2

Potential vorticity
 A) does not depend upon planetary vorticity.
  B) does not depend upon relative vorticity.
  C) need not obey Conservation of Angular Momentum.
  D) is unrelated to the Coriolis force.
  E) none of the above

[xiaomengxian]

Answer to Question 1

C

Answer to Question 2

E