Although the world develops much faster and better, the resources on the earth get fewer and fewer. In order to protect them, something must be done.
_______________. Water is the source of life. No water, no life. So it's very important for us to do so.
Not only should we protect drinking water and stop polluting it, but also make full use of it.
_______________. It is crucial. We can't imagine what the life will be like without it Everyone should do his best to save it. Don't forget to turn off the lights or other electric machines when we finish working.
_______________. They are useful. Please stop cutting them down and use recycled paper instead.
Make our world a green one to live in.
_______________. Plenty of them can be recycled like cans, paper, bottles, and so on.
The volunteers often teach people how to recycle, and gave us tips on how to save energy, and we should work together to protect the resources and improve the environment around us.
