問題詳情
This type of agricultural practice accounts for about20% of human-related worldwide emissions to theatmosphere of which greenhouse gas?
(A) chlorofluorocarbons
(B) freon
(C) methane
(D) ozone
This type of agricultural practice accounts for about20% of human-related worldwide emissions to theatmosphere of which greenhouse gas?
(A) chlorofluorocarbons
(B) freon
(C) methane
(D) ozone