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iii) It is because we need to teach the people how serious the pullution of the environment is.
In 21 century, it have a lot of environment problems in the world. For example, water, air, land, light, noise pollution, deforestation, Urbanization and many many. Why it will have a lot of pollution? It is because these pullution is made from us. We polluted the nature, we destorying the nature. So, if we don't improve these problems, the earth will be very dirty. So, please support our new festival. **We hope the environment will be cleaner and the problems of the environment will disappear.**