If you're an environmentalist, plastic is a word you tend to say with a sneer or a snarl. It has become a symbol of our wasteful, throw-away society. But there seems little doubt it is here to stay, and the truth is, of course, that plastic has brought enormous (1)     , even environmental ones. It’s not really the plastics themselves that are the evil ─ it's the way society chooses to use and (2)     them.

Almost all the 50 or so different kinds of modern plastic are made from oil, gas or coal ─ non-renewable natural (3)     . We (4)     well over three million tones of the stuff in Britain each year and, sooner or later, most of it is thrown away. A high (5)     of our annual consumption is in the form of packaging, and this (6)     about seven percent by weight of our domestic refuse.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks

(1) ..................

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