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Science » Nethraa

Category Archive: Science

The Earth- landscape and sea scape

Ravine: Narrow, steep – sided depression in earth’s surface formed by running water larger than a gully, smaller than a canyon. Gully: Channel or small valley worn in earth by running water. Intervene: Tract of land along river. Kloof: Deep gorge or ravine (South Africa). Serac: Tall peak or mass of ice projecting upward from …

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Amazing facts

 Whales looks so… Big and scary. But it won’t attack or destroy anyone. It will just wander (swim) here and there deep in to the water. Whale’s foods are like sea dog, birds which lives in sea, penguins and fishes in sea.  Elephants: A1fter taking bath elephants used to take mud and put on his …

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Birds Migration

                         Bird migration is a periodic movement of birds between their breeding and non- breeding area or and any regular movements of birds that forms part of their life cycle the term ‘migration , generally refers to the periodical movements of birds, ie, across the borders is is described as Local migration and seasonally up …

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Tsunami

   TSUNAMI Tsunami is a Japanese word meaning is harbor wave. A tsunami is a series of huge that occur after undersea disturbances such as earthquakes and volcanic eruptions. The waves travel in all directions from the area of disturbances. These waves can be as high as 50 feet or more. They may attain speeds …

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Digestive System

The food we eat is digested by the body with the help of the mouth, stomach and intestines. Digestion is the process of breaking down the food to simpler forms so that it can be absorbed by the body. When we eat food it is chewed by our teeth and gets mixed with the saliva …

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