Relier Pairs c16u11lb VocabVersion en ligne match the words with the pictures par Rodrigo Casas 1 ENERGY-SAVING 2 DROUGHT 3 AIR POLLUTION 4 TOXIC CHEMICALS 5 NATURAL RESOURCES 6 GLOBAL WARMING 7 WATER CONSUMPTION 8 LANDFILL 9 BIODEGRADABLE 10 ENVIRONMENTALLY FRIENDLY