5 Find words which mean (10 marks, 2 for each correct word)
1 the power which can do worka source b energy c transport2 to make air, water, soil, etc. dangerously dirty and not good for usea recycle b absorb c pollute3 to become smallera throw away b affect c shrink4 containing salta saline b soil c solar5 a rise in world temperaturesa ozone layer b global warming cheating system