During occlusion a cyclone's low-pressure area :

During occlusion a cyclone's low-pressure area
 A) is closely associated with the cold front.
  B) is closely associated with the warm front.
  C) is directly under the upper-level trough.
  D) all of the above
  E) none of the above

Question 2

Divergence
 A) diminishes precipitation.
  B) inhibits cloud formation.
  C) causes cyclones to dissipate.
  D) is common east of troughs.
  E) all of the above

Question 3

Speed divergence is
 A) most common with anticyclones.
  B) straight-line acceleration of upper-level winds.
  C) the spreading out of upper-level winds.
  D) primarily a fair-weather phenomenon.
  E) primarily a surface-level phenomenon.

Question 4

Strong surface convergence around a low-pressure system means that
 A) there is upper-level divergence.
  B) there is upper-level convergence.
  C) there is surface-level convergence from an associated anticyclone.
  D) there is upper-level divergence from an associated anticyclone.
  E) winds are weak in the area of the low-pressure system.

Question 5

Cyclones will usually move ____ the steering winds at the 500 mb level.
 A) 90 degrees to the left of
  B) 90 degrees to the right of
  C) in the opposite direction as
  D) in the same direction as
  E) none of the above

Question 6

This would not typically happen with the approach of a warm front
 A) pressure drops.
  B) thunderstorms.
  C) high clouds giving way to lower clouds.
  D) rising temperatures.
  E) rising dew points.

Question 7

The tail of a comma cloud is caused by a
 A) cold front.
  B) warm front.
  C) occluded front.
  D) stationary front.
  E) dry slot.