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Renewable Resources

        These  are  the resources  that get renewed  or  replenished  quickly. For
        example, air, water, sunlight, etc.
           Water: Only about 2.5 % of water on earth is fresh water. Energy                    Solar Energy
              from rivers is used to make electricity. Energy produced by tides in
              sea and oceans can also be converted into electricity.
                                                                                     Hydropower Energy    Biomass Energy
           Sun: Sun’s energy or solar power can be used to generate electricity.
              This energy is used in calculators, street lamps and even in room                   Energy
              heaters and water heaters.                                                        The Fuel of Life
           Wind: The energy from the force of wind is called wind energy. This
              energy can  be used  for  grinding grains, pumping water, etc. This     Geothermal Energy   Wind Energy
              energy can also be converted to electricity.

           Biomass: Energy can be produced  from wastes of plants and animals. It can be used for cooking. It can also
              be used to produce electricity and heat.
           Soil: Nutrients in the soil helps plants to grow.  Soil is used to provide shelter.  Soil quality gets damaged
              due to addition to harmful chemicals, land pollution, construction activities and cutting down of trees.
           Forests: Forests are necessary to preserve ecology. They play an important role in providing clean air and
              attracting rain clouds. They also provide food, gum, rubber, wood and plants with medicinal value.

        Non-renewable Resources

        These are those resources which have a limited stock. Once the stocks is exhausted, it may take thousands of
        years to be renewed or replenished. For example, coal, petroleum and other mineral resources.
           Coal: Coal is one of the cheapest sources of fuel. It is used in power houses, factories and houses for
              cooking and heating.

           Petroleum: It includes petrol, diesel and mineral oils. It is used to run motor vehicles, furnaces and power-
              houses.

           LPG: Liquefi ed  Petroleum  Gas  (LPG)  is  made  from
              petroleum gas.  LPG is  used  for cooking and  also for
              running vehicles.
           Natural Gas: It is formed by decomposition  of dead
              animals and plants that are buried under lakes and oceans.        Fossil Fuel Oil
              It is found above the oil in oil wells. Compressed Natural                                   Coal
              Gas (CNG) is used for running vehicles.
           Nuclear Plants: Nuclear energy  is made available to us
              through nuclear power plants. Nuclear energy is becoming
              a common source of electricity throughout  the world                           Energy
              despite the fact that it has the danger of causing great harm                The Fuel of Life
              in case of an accident.
           Minerals: The earth contains minerals like gold, bauxite,       Nuclear                       Natural Gas
              mica, iron-ore and many others. They are reducing, as
              larger and deeper mines are being dug to obtain these minerals. Mining these minerals causes damage to
              the earth.

        Practices for Conservation of Resources
        For most of us, conservation of natural resources means hoarding or controlling the supply of these resources
        in such a way that a part of it is left for the future. This is not a correct approach. Conservation is a holistic


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