Completar frases Food scrapsVersión en línea Fill in the gaps with the right word por Juanma Alijo 1 food amount thrown greenhouse do waste organic matter food landfill Methane gas CO2 20 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 .