Areas between 25 to 35 latitude usually become ________ because ...

[ETearle]

Areas between 25 to 35 latitude usually become ________ because this area is dominated by air that is sinking and being ________.
 
  A) deserts; cooled by expansion
  B) deserts; heated by compression
  C) rain forests; cooled by expansion
  D) rain forests; heated by compression

Question 2

A study of jet contrails following the grounding of commercial flights after the September 11, 2001 terrorist attacks found that
 
  A) contrails have a very limited effect on the Earth's energy budget.
  B) contrails reduce diurnal temperature ranges in regions with a high density aircraft.
  C) contrails contribute more to cloud-albedo forcing than cloud-greenhouse forcing.
  D) contrails are difficult to distinguish from natural cirrus clouds.

[jesse.fleming]

Answer to Question 1

B

Answer to Question 2

B

[ETearle]

Gracias!

[daiying98]

Excellent