WHICH OF THE FOLLOWING SENTENCES IS NOT TRUE

35. Which of the following sentences is NOT true?A. UFO means Unidentified Flying Object.B. UFO is often used to talk about alien spaceships.C. Over half of all reported UFO sightings are identified.D. Many UFO sightings are hoaxes.IV. Choose the best answer to complete the passage (1,0 pts)Everyone wants to reduce pollution. But pollution problem is as complicated as it is serious. It iscomplicated (36)………much pollution is caused by things that benefit people. For example, exhaustfrom automobiles causes a large percentage of all air pollution. But automobiles (37)…….transportation for millions of people. Factories discharge much of the material (38)………….pollutesthe air and water, but factories give employment to a large number of people .Too much fertilizer orpesticide can run soil , but fertilizer or pesticide is important aids to the growing of crops. Thus, toend (39)……greatly reduces pollution immediately, people would have to (40)……using many thingsthat benefit them. Most people do not want to do that, of course. But pollution can be gradually reducedin several ways.