Tuesday, December 9, 2008

Facts about Conservation .

Conservation is the action taken to preserve and protect the environment from pollution, over exploitation and other harmful features of human activity.
Try to answer these following questions:
  • A thin layer of a gas in the upper atmosphere shields the earth from the harmful ultraviolet rays of the sun. This gas is -------

  • Some synthetic gases have been partly responsible for the depletion of the ozone layer. They are called-----------------

  • Increased quantities of gases in the air such as carbon dioxide trap the heat from the sun. this causes a gradual rise in the atmospheric temperature. This phenomenon is known as the .........

  • Rain that has been polluted by harmful gases like sulphur dioxide is harmful to the environment. This type of rain is called---------

  • The gradual rise in the earth’s temperature due to high level of gases in the atmosphere is called-------

  • The United Nations launched a programme for international cooperation in environmental conservation. It is called the-------

  • Some objects like plastics do not break down naturally and return to the soil. They cause soil and air pollution. Such things are know by the term

  • In 1992, a conference was held in Rio de Janeiro. Representatives of governments discussed what should be done to save the planet. The name of this conference was--------

  • A project was started by Veer Bhadra Mishra to clean the polluted rivers of india. The name of this project is ------------

  • In the 1970s, the people of Uttarakhand carried out a unique movement to protect the Himalayan forests. They hugged the trees to save them from being felled. This movement was called the ---------
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