Description : Which one of the following contributes largely to the ‘green house effect’? (1) Ozone (2) Carbon monoxide (3) Carbon dioxide (4) Water vapour
Last Answer : (4) Water vapour Explanation: The primary greenhouse gases in the Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone. When these gases are ranked by their direct contribution to the ... dioxide: 9-26 per cent; Methane: 4-9 per cent; and Ozone: 3-7 per cent.