1.You should r- - - - - - things like paper, jeans, leftover, etc. instead of throwing them away. 2. He should t - - - off the faucet while brushing his teeth. 3. Currently there are a lot of e - - - - - - from deforestation such as storm, flood. 4. It is a w - - - - when you leave the light on in an empty room. 5. If water continues to be wasted, there will be a s - - - - - - - of it in the future. 6. Solar p - - - - is placed in the roof of house. 7. Noise p - - - - - - - - is a serious problem because there are lots of vehicle in the roads today. 8.We use wind t - - - - - - to convert wind power into electricity.