The lifting of air and the resulting formation of clouds and rain ...

[abc]

The lifting of air and the resulting formation of clouds and rain is more gentle (gradual) for a:
 
  A) mesocyclone.
  B) warm front.
  C) divergence zone.
  D) cold front.
  E) occluded front.

Question 2

Oxygen-isotope analysis:
 
  A) cannot be carried out on ice cores or sea floor sediments, but works well for tree ring analysis.
  B) has been shown to be of little or no use in the study of past climatic changes.
  C) relies on the fact that 16O evaporates from the ocean more readily than 18O.
  D) is very simple.

[Swizqar]

Answer to Question 1

B

Answer to Question 2

C