Correct Answer: Methane

Solution : The correct answer is (D) Methane.

Greenhouse gases are gases that trap heat in the Earth's atmosphere, contributing to the greenhouse effect and climate change. Methane is a potent greenhouse gas that is released through various natural and human activities,including the production and transport of coal, oil, and natural gas. It is also emitted by livestock, agricultural practices, and the decay of organic waste in landfills. Methane has a much higher warming potential compared to carbon dioxide, although it exists in lower concentrations in the atmosphere.