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•  Non-Renewable: Resources that are limited and cannot be replaced at the same speed at which they are used up
          are called non-renewable resources. It takes millions of years to form inside the earth. Examples include fossil fuels,
          minerals, natural gases, nuclear energy, etc.
        •  Exhaustible: Resources which are present in limited quantity and will deplete after a few hundred years due to their
          over consumption by human activities. For example: coal, petrol, natural gas, water, etc.
        •  Inexhaustible: Resources which are present in abundance and cannot be exhausted even by their over consumption
          are called inexhaustible resources. For example: air, solar energy, etc.



                   28  July  every  year  is  celebrated  as  World  Nature  Conservation  Day  that  focuses  on
                   conserving and protecting our natural resources.



                NATURAL RESOURCES CONSERVATION


        Natural Resource is the main reason for our existence on this planet. Many natural resources are present in the
        environment in abundance, some resources can ultimately perish due to increase in population and industrialisation.
        It is important to conserve these natural resources by doing our part in saving it for our future generation. The direct
        or indirect consumption of natural resources across the globe has led to their rapid depletion; as a result of this many
        countries of the world are calling for better means of managing and sustaining these natural resources.

        Need to Conserve Our Natural Resources

        We need to conserve our natural resources because of the following reasons:
        •  For our survival.
        •  To maintain our environmental balance.
        •  It is an important factor for the economic development of a country.
        •  It takes millions of years to replenish non-renewable resources.
        •  Due to increase in population and rapid urbanisation, these resources are getting exhausted at a higher rate.




                               China has the most natural resources estimated to be worth $23 trillion, 90% of which
                               are coal and rare earth metals.



        How To Conserve Our Natural Resources
        Natural Resources are consumed by living organisms directly or indirectly for their existence. Conservation of natural
        resources helps maintain an ecological balance. We can conserve it for our future generations by protecting it in
        different ways as discussed below:

        Water Conservation
        Water is an essential natural resource for the existence of life. Our body is made up of 70% of water. We need water
        for agricultural, industrial, household and recreational activities. We can conserve water by using the given measures:
        •  By doing rainwater harvesting.
        •  Setting up water treatment plants to reuse the water for irrigation or other purposes.
        •  Judiciously using water at homes, restaurants, social gatherings and workplaces.
        •  Growing more vegetation in rain deficient areas to trap rainwater and hold underground water.



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