Fill in the Blanks Food scrapsOnline version Fill in the gaps with the right word by Juanma Alijo 1 greenhouse CO2 matter organic gas waste Methane food amount thrown landfill food 20 do What powerful gas is produced when matter like scraps and garden cuttings are into landfill ? , a greenhouse with over times the global warming capacity of carbon dioxide ( ) , is produced when organic breaks down in . What can you ? Reduce the of you .