This document provides an overview of different types of pollution, including their definitions, causes, effects, and methods of prevention. It discusses air pollution, water pollution, noise pollution, land pollution, and radioactive pollution. For each type of pollution, it outlines the major causes as industries, automobiles, waste disposal, etc. and effects on human health, environment, and aquatic life. The document also suggests prevention methods like using cleaner fuels, proper waste disposal, reducing noise levels, reforestation, and safe nuclear waste storage.