This document discusses energy conservation. It defines energy as the ability to do work and outlines types of energy including renewable sources like solar and wind, and non-renewable sources like fossil fuels. It explains that energy is needed for many aspects of modern life but resources are limited. Conservation is important so resources last and pollution is reduced. Suggested conservation methods include recycling, using efficient appliances, and replacing incandescent bulbs with LEDs. The document also notes India's growing energy demands and dependence on imports.