The document discusses different types of environmental pollution and their health impacts. It covers air pollution from vehicles, factories and smokestacks, which can cause lung cancer and respiratory diseases. Water pollution is discussed along with its causes such as sewage, oil spills, and toxic waste from homes and industries. Land pollution is also covered, with humans and their careless disposal of trash as a major cause. The document ends by mentioning recycling, reforestation, and clean environment as ways to promote healthy living.