The document provides an overview of environmental pollution, detailing air, water, and land pollution, including their causes, effects, and prevention measures. Air pollution results from natural and human activities, impacting health and the environment, while water pollution is caused by industrial waste, agricultural runoff, and inadequate sewage treatment, also harming ecosystems and human health. Land pollution arises from waste, chemicals, and hazardous materials, affecting soil and health, and requires measures like recycling and public awareness for mitigation.