4.4 climate change

Question 1

how do greenhouse gases trap heat?

Answer 1

greenhouse gases absorbs and emit long-wave (infrared) radiation, thereby trapping and holding heat within the atmosphere.

Question 2

greenhouse gases make up ________of atmosphere

Answer 2

less than 1% collectively

Question 3

greenhouse gases which have the largest warming effect within the atmosphere are

Answer 3

water vapour (clouds) and carbon dioxide.