As the number of private cars has increased, so too has the level of pollution in many cities. What can be done to tackle this increasingly common problem?
The world is experiencing a dramatic increase in population, This is causing problems not only for poor, undeveloped countries but also for industrialised and developing nations. Describe some of the problems that overpopulation causes, and suggest at least one possible solution.
People in all modern societies use drugs, but today’s youth are experimenting with both legal and illegal drugs, and at an increasingly early age. Some sociologists claim that parents and other members of society often set a bad example.