greenhouse gases and global warming

Question 1

how does carbon dioxide and water vapour contribute to global warming alongside other greenhouse gases?

Answer 1

carbon dioxide and water vapour retain atmospheric heat and maintain the earth’s temp. with a rise in the amount of these gases, this leads to global warming

Question 2

what are the effects of global warming?

Answer 2

unusual weather conditions such as hurricanes, tsunamis and droughts, melting of polar ice caps, causing floods to low-lying lands