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29. Some people believe that the Earth is being harmed (damaged) by human activity. Others feel that human activity makes the Earth a better place to live. What is your opinion? Use specific reasons and examples to support your answer.

When it comes the issue whether human activity can harm the earth or not, different people hold different views. If I were faced with the same question, I would probably say that it could harm the earth, especially to the environment. In the following discussion, I would like to reason and provide evidence to support my opinion.

The most important reason I cannot neglect is pollution. As we all know, one of human activities is that human cut trees, then they build houses and factories. These activities pollute the air seriously. Beijing, the capital of China, has undergone several sandstorms these years. Why? Because people cut trees that were planted in the suburb of Beijing in order to cultivate the crops. Nowadays, more and more people drink bottle water not the water flowing from faucets. Why? Because our rivers were polluted with the chemical material discharged by factories. We need use suntan oil to protect our skins when we are out. Why? Because the ozonosphere was destroyed by human activity. If you can understand this, you can understand my view better.

Another head and chief important reason I have chosen to put here is that human activity causes greenhouse effect. Don’t you realise that the weather is more and more warm these years? Why? Because people construct a lot of mansions and roads these years. They use glass as wall to built high rises, they use concrete to pave roads. All these construction materials cannot absorb but reflect the sunlight to the air. And most people like to use air conditions in summer, this action also make the air warm. If the weather was continuously warm, it could melt the iceberg and glacier that would bring a terrible disaster to the world. Don’t you think this example is persuasive?

Last but not the least reason is that human activity could make animals and plants extinct. There are many animals we can only see from the zoo not from the nature. Why? Because human activity destroy their living places and they cannot find enough food in the forest. The only safe place to them is the zoo. Don’t you think it is awful?

To sum up, given all the reasons discussed above. We can safely reach the conclusion that the earth is being harmed by human activity. The only thing we can do is to protect the nature lands instead of to develop them.

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