El Nio A) did not occur in the 1990s. B) causes warmer waters ...

[Engineer]

El Nio
 A) did not occur in the 1990s.
  B) causes warmer waters in the eastern Pacific Ocean.
  C) leads to overall global cooling.
  D) has little impact upon weather in the Northern Hemisphere.
  E) none of the above

Question 2

The sulfur dioxide from a violent volcanic eruption does all of the following, except
 A) remain in the atmosphere for at least a year.
  B) stay in the middle to upper layers of the troposphere.
  C) transform into sulfuric acid.
  D) increase the amount of sunlight reflected back to space.
  E) help cool the atmosphere.

[Kimmy]

Answer to Question 1

B

Answer to Question 2

B