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Essay on Earth

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                                                            Essay on Earth                                                                                Planet                                                                                                  Sun                                                                   Mercury                                                                                                                                                                                                                                                                                               VENUS                                                                                                                                                                                                               EARTH                                                              The earth is the planet that we live on and it is the fifth largest planet. Our earth is the only p
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ENVIRONMENT

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                                           Environment Environment  :    Environment is our besic life support system. It provides the air we breath, the water we drink, the food we eat and the land where we live. Biotic  :   The world of living organisms. e.g.  plants and animals. Abiotic  :   The world of non living elements. e.g. land.                                                                             WORDS  ORIGIN  Environment   :    French word Environner meaning " neighbourhood ".            Domains of the Environment Lithosphere  :    The solid crust or the hard crust or the hard top layer of the earth. It is made up rocks                              and  minerals and coverd by a thin layer of soil. Hydrosphere  :   It comprises   varios sousces of water and different types of water bodies like river, , lakes , seas , oceans , etc. Atmosphere :  Our earth is surrounded by a huge blanket of air called atmosphere. Biosphere : It is narrow zone of the earth wher
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PLANETS NAME

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                                                           PLANETS NAME                                             BLACK HOLE                                                                                             SUN: Its diameter is about  1.39 million kilometres (864,000 miles),  or 109 times that of Earth. It holds 99.8 percent of the solar system's mass and is roughly 109 times the diameter of the Earth — about  one million Earths could fit inside the sun . The sun is a star. its a center of asolar system. it is a perfet like ball hot plasma , heated by nuclear fusion. reaction in core he energy mainly as visible light. Black hole :            A black hole is a region of spacetime where gravity is so strong that nothing – no particles or even electromagnetic radiation such as light – can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of no escape is called the event horizon
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Sections of humain heart

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                                 Sections of humain heart  HEART- The heart is an organ which beats continuously to act as a pump for the transport of blood,                       which carries other substances with it.                    Image a pump working for years without stopping absolutely imposible.Yet our heart works                   like a pump non-stop .Let us now learn about.\                  The heart is located in the chest cavity with its lower tip slightly tiled towards the lift . Hold                    your fingers inwards on yours plam. that makes your fist.Your heart is roughly the size of                         your fist.
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