This document discusses various types of pollution including air, water, and land pollution. It describes the causes and effects of each type of pollution. Some key points include: - Air pollution occurs when harmful substances are released into the air from sources like vehicles, factories, and forest fires. It can travel long distances and cause health issues. - Water pollution happens when waste is dumped directly into water bodies or washed into them from land. It endangers wildlife and ecosystems. - Land pollution results from improper waste disposal and overuse of chemicals on farms, contaminating soil and water sources. The document also outlines international cooperation and national measures that can be taken to control pollution, such as regulations, alternative energy