废物

Who is willing to drink the polluted water? It can cause us to be ill and even to die. We can't wait for a moment to protect our water sources. The water we use comes from oceans, lakes, rivers or str

Every day, people have lots of waste to throw away. Such as used handkerchiefs, plastic bags, boxes, bottles and so on. I cannot imagine how much waste is thrown away every day all over the world.Ther

We live in the world every day. We eat food, drink water, wear clothes, watch TV, use computers and so on. We are producing waste every moment.Generally speaking, there are four sorts of waste. They a