Read the passage and answer the question
Everyone wants to reduce pollution. But the pollution problem is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. For example, exhaust from automobile caused large percentage of air pollution. But the automobile provides transportation to millions of people factories discharge much of the material that pollutes air and water, but factories give employment to a large number of people.
Thus, to end or greatly reduce pollutions immediately, people would have to stop using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually reduces in several ways, scientists and engineers can work to find ways to lessen the amount of pollution that such things as automobiles and factories cause. Government can pass and enforce laws that require businesses and individuals to stop, or cut down on certain polluting activities.
Do things that benefit people bring about pollution?
