Greenhouse Effect

    The greenhouse effect is now one of the most serious problems in the world. Actually greenhouse is a house made of glasses. In cold countries people grow vegetables and other plants in it. Its specialty is that it receives heat from the sun and can retain it inside. That heat is trapped inside it.

    Our world has now become something of that type. Numerous industries and vehicles are emitting huge amount of carbon-di-oxide and other gases every day. These gases are acting as a glass which retain the heat coming to earth from the sun. Consequently, the warmth of the atmosphere is increasing day by day. As a result of this, the polar ice caps are melting and the sea-level is rising.

    Many low-lying countries are now at the risk of being flooded by the rising of water-level. Moreover, various natural calamities such as cyclone, storm, tidal bore, emission of carbon dioxide must be controlled to avert this catastrophic disaster.

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