Pollution－Draft 2

What's the biggest problem in the world? That is pollution! There are many kinds of pollution in our everyday life. Such as air pollution, water pollution,radiation pollution, and so on. What would these pollution cause? They would let crops poison, the ozonosphere broken and the most serious is greenhouse effect! If we don't do make effort for our world, the earth will be ruined! So we must put into effects for our surroundings. What can we do to preserve the environment? We can save energy. How to do it? First, we can turn off the lights before we leave a room. Second, we should ride bicycle or walk instead of driving, and use the air conditioner only when it is really needed. In addition, we can also do recycle. If we can certainly accomplish these gists, our nature will be more beautiful! To protect our earth, we must act quickly.