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.
We humen live on a beautiful blue planet-the earth.Some people belive that human activity makes the earth a better place to live,but I hold that human activity has made a lot of damages to the beautiful planet than to improve its living condition.
obviously,human activity make the environment on the earth seriously polluted.The ozonosphere is damaged by the Freon;Numberless water lives died in the polluted lakes;People even can not see the blue color of sky in some place,and we must breath in the exhaust air released by the automobiles everyday.
Another problem is the lack of natural resources.Everyone knows that the natural resources on the earth are not inexhaustible,but seldom do people think of the needs of offspring when they are over exploiting.Huge areas of forrests also disappeared because human need farmlands.And water resources are also in danger.
In addition,various species died out due to the over hunting and killing by human.Scientists recently doubt the extinction of mammoth is also caused by human activity.
Although many people now realize the importance of environment protection of the earth,it is always harder to repair than to damage.And there is still a large number of people who has not been aware of the serious situation of the earth.