Which of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contibute to the total global warming?

Which of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contribute to the total global warming?

Which one of the following is the correct percentage of the two (out of the total of 4) green house gases that contribute to the total global warming ?

Which one of the following is the correct percentage of the two (out of the total of 4) green house gases that contribute to the total global warming?

Which one of the following in the correct percentage of the two (out of the total of 4) green house gases that contribute to the total global warming?

Name the Green House gas that contribute to total global warming.

Name the Green House that contribute to total global warming.

Which one of the followig green house gases contributes about 20% of global warming?

Which greenhouse gas contributes 20% of global warming

Which greenhouse gas contributes 20% of global warming