Question

Greenhouse gases trap heat in the atmosphere which makes the Earth warmer. Which of these groups consists of greenhouse gases that cause most harm?

• A. Methane, Carbon dioxide, Nitrous oxide
• B. Nitrogen, Oxygen, Methane
• C. Ozone, Carbon monoxide, Helium
• D. Water vapour, Nitrogen, $CFCs$

Answer 1

The correct option is A Methane, Carbon dioxide, Nitrous oxide

• Greenhouse gases are a group of compounds that are able to absorb heat in the atmosphere, keeping the Earth's surface warmer by allowing the direct sunlight to reach to the Earth’s surface. Greenhouse gases include carbon dioxide, methane, nitrous oxide and other gases.
• Carbon dioxide is the largest contributor to climate change because it is very common.
• A Methane molecule has 25 times the global warming potential of a carbon dioxide molecule whereas a single nitrous oxide molecule has 298 times the global warming potential of a carbon dioxide molecule.