Read the following passage and choose the correct word for each of the blanks  

   About 50 or so kinds modern plastic are made from oil,gas,or coal-non-renewable natural resources . We (56)______ well over three million tones of the stuff in Japan each year and, sooner or later, most of it is thrown away .A high (57))______ of our animal consumption is in the (58)______ of packaging and this (59) ______ about seven percent by weight,of our domestic(60) ______ . Almost all of it can be recycled , but very little of it is ,though the plastic recycling (61)______ is growing fast .      The plastics themselves are extremely energy - rich – they have a higher calorific(62) ____ than coal and one (63)______ of “recovery” strongly(64)______ by plastic manufactures is the (65)______ of wast plastic into a fuel .

 We (56)______ well over three million tones of the stuff in Japan each year and, sooner or later, most of it is thrown away