The greenhouse gas that has been the most directly connected to ...

[Chelseaamend]

The greenhouse gas that has been the most directly connected to the combustion of fossil fuels is ________ and the greenhouse gas that has stabilized in the lower atmosphere is ________.
 
  A) N2O; H2O B) CO2; CH4 C) H2O; CH4 D) CO2; CFC E) CH4; CFC

Question 2

Effective environmental leaders believe that their actions ________.
 
  A) have no impact on the environment
  B) matter
  C) can do nothing because they are only one person
  D) cannot be changed
  E) are superior to others

[Jordin Calloway]

Answer to Question 1

D

Answer to Question 2

B

[Chelseaamend]

Excellent

[yeungji]

Gracias!