The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect.A. Nitrogen Dioxide (NO2)B. Chlorofluorocarbons (CFCs)C. Methane (CH4)D. High-fructose corn syrup (HFCs)Leave a ReplyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional)
