In order to live a satisfying life, people try every way to make good use of plants, animals, and all the things they can find in the 1 . Every day they 2 lots of waste, such as plastic bags, bottles, wooden chopsticks and so on, and all these cause the _ 3 of the environment where we live. There is more 4 now than ever before. Most of the waste can be 5 and reused. Wooden chopsticks and used papers can be recycled in pulp. Glass and plastics can be reused to make new things. Some 6 from living things can make crops grow better, but now the traditional way of 7 solid waste is quickly becoming inadequate. Many cities are experimenting with new ways of 8 the growing piles of rubbish. Recycling will 9 a lot of natural materials and energy. If most of the waste is recycled and reused, the 10 will become much better.