What is the primary greenhouse gas emitted through human activities?
(A) Carbon dioxide
(B) Methane
(C) Nitrous oxide
(D) Chlorofluorocarbons
Carbon dioxide (CO2) takes the spotlight as the primary greenhouse gas emitted through human activities. Its dominance stems from the extensive burning of fossil fuels in various sectors like transportation, electricity generation, and industries. Additionally, deforestation contributes by reducing natural CO2 absorption.
While methane (CH4) is more potent, its emissions are lower. Sources include agriculture, landfills, and fossil fuel extraction. Nitrous oxide (N2O) mainly arises from agricultural practices and fossil fuel usage, while chlorofluorocarbons (CFCs) contribute despite being phased out.
So, the answer is!
Carbon dioxide, with its widespread emission from human activities, emerges as the primary greenhouse gas. Thus, the correct answer to the quiz question is a) Carbon dioxide. Recognizing its significance is vital in addressing climate change and moving towards sustainability.
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