A. MELT B. FREEZE C. DEFROST D. FLOW A. MELT B. FREEZE C....
10. A. melt B. freeze C. defrost D. flow If you are an environmentalist, plastic is a word you tend to say with a sneer or snarl. It becomes a symbol of our wasteful, throw-away society. But there seems little (1) ………….. it is here to say,and the truth is, of course, that plastics have brought enormous (2) …………. even environmental ones. It is not really the plastics themselves that are the environmental (3) ………… - it is the way society chooses to use and (4) ………. them Almost all the 50 or so different kinds of modern plastic are made from oil, gas or coal – non-renewable natural (5) …………. We (6) ……… well over three million tons of the stuff in Britain each year and, sooner and later, most of it is thrown away. A high (7) ………… of our annual consumption is in the (8) ……… of packaging and this (9) …………. about seven per cent by weight of our domestic (10) …………. Almost all of it could be recycled, but very little of it is, though the plastic recycling (11) ………. is growing fast. The plastics themselves are extremely energy-rich – they have a higher calorific (12) …………. than coal and one (13) ……… of “recovery” strongly (14) ………… by the plastic manufactures is the (15) ……… of waste plastic into a fuel.