nature, the environment which human beings live by, is magnificent and unique. there si only one earth with super living conditions in the universe. we should have cherished nature and preserved it. conversely, however, we have been continually spoiling it, even to a shocking degree. now let's see what we have dong. thousands of trees have been cut down per year, which has caused soil erosion. hundreds of thousands of tons of cfcs have been left in the higher sky in the last decade which has led to the ozone layer leak above the south pole that covers an area of that of the united states. million tons of fuel containing nitrogen and sulphur have been consumed per year, which has eventually resulted in acid rain throughout the world.
similarly, ecology has been affected as well. and considerable number of species have been extinct as the years go by many creatures which were common in the past are becoming less and less, even rare. the tibet antelope, for i