The document discusses the environment and environmental degradation in India. It defines the environment as everything that makes up our surroundings, including air, water, plants, and animals. It notes that human activities like air pollution, deforestation, and acid rain are damaging the environment. The living species, climate, and natural resources that comprise the environment are being depleted. This is leading to the destruction of ecosystems and habitats as well as pollution and extinction of wildlife. Over half of India's population lives in areas with air pollution levels that exceed national standards.