1. Unless most of us replace coal fuel with gas fuel, we can hardly control air pollution. => Air pollution 2. Because the airport is located near our neighborhood, we must suffer from noise pollution every day. => We wouldn't 3. The ship pollution, especially oil spills, is one of main causes of the ocean pollution. Therefore, we need to reduce it. => If we 4. Thomas expects for a great amount of money to move to another place to stay away the noisy industrial zone. => If Thomas