The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect
Correct answer: D. Methane (CH4)
- A. Nitrogen Dioxide (NO2)
- B. Chlorofluorocarbons (CFCs)
- C. High-fructose corn syrup (HFCs)
- D. Methane (CH4)
Explanation
Among the listed gases, methane is generally identified as the second-largest contributor to human-caused greenhouse warming after carbon dioxide. CFCs are extremely powerful per molecule but occur in much smaller amounts.
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Environmental science covers ecosystems, food chains and webs, energy flow, biogeochemical cycles, biodiversity, natural resources and population effects. Atmospheric study includes the layers and composition of air, weather and climate, greenhouse gases, global warming, ozone depletion, acid rain and pollution, with climate change distinguished from ordinary weather variation.
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