Read the passage and find the mistakes: (0) The world's oceans are so vast that they can cope with the present levels... (74) of pollution. However, few is known about the long-term effects of... (75) such slow poisoning. The more serious problem of modem times is that... (76) man is destroyed the earth's natural resources and transforming huge area... (77) into wasteland. As the result, it is becoming extremely difficult to grow... (78) enough to feed the world's rapid increased population. A way of protecting... (79) all the wildlife in the earth must also be found as many species are in... (80) extreme danger of disappearance complete from the face of the earth. The... (81) dangers, however, are not confine solely the land and the sea. The smoke in... (82) the atmosphere, for example, is increasing so many that the amount of... (83) sunlight has been educed in many cities. Man's whole environment is being changed...