Global warming is due to natural or anthropogenic reasons are greatly impacting the Earth 39 s clima...........

Environment and Ecology Envirnment and Climate Change

Global warming is due to natural or anthropogenic reasons are greatly impacting the Earth's climate system. Which of the following is/are the major greenhouse gases?

1. Water vapour

2. Carbon dioxide

3. Methane

4. Ozone

Select the correct answer using the code given below:

1 and 2 only

1 and 3 only

2 and 3 only

All of the above

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Explanation:

Greenhouse gases trap heat radiating from Earth to space. This heat, in the form of infrared radiation, gets absorbed and emitted by these gases in the planet's atmosphere thus warming the lower atmosphere and the surface. The major greenhouse gases are water vapour, which causes about 36–70% of the greenhouse effect; carbon dioxide (CO2), which causes 9–26%; methane (CH4), which causes 4–9%; and ozone (O3), which causes 3–7%.