(0) pollution       make          from                 cause                 emitted                              seldom                     fumes        
        Everyday on radio, on TV, and in the newspaper, we hear, see or read about many  problems in the world,  for example, (0) pollution problems. Air pollution is the first kind. It mostly comes from   (1) .......................... released from motorbikes, cars, airplanes, trains and poisonous gases (2) ...........................  from factories. Also, waste is dumped any where, even in the city where many people are living. The second pollution problem is sea pollution. Many people earn their living from fishing in the sea, and the fish they catch feed many people. But
the sea has become so polluted (3)   ................................... oil spills and factory wastes that the fish are dying. This pollution is not only killing the fish, but is also affecting those people who eat fish.
    (4) .............................. do you find a place nowadays that is not polluted. This problem is growing more difficult everyday. We must find a good solution that can (5) ........................... the world a better place to live.