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Paragraph on “What other kinds of energy can we use?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

What other kinds of energy can we use? You have seen in the previous question the stages through which the Sun’s energy passes before we can tap it as the fossil fuel, petrol. It has taken millions of years for the world’s reserves of oil to be built up and we have consumed much of it in a few decades. We need energy in our homes and in industry and for...
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Paragraph on “How do we know what the bottoms of oceans are like?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

How do we know what the bottoms of oceans are like? Over two-thirds of the Earth’s surface is covered with water. Most of this is very deep and we call it ocean. People cannot go down very far because the pressure of the water on them increases the deeper they go. Deep-sea divers wear protective clothing to stop their bodies being crushed. However, people have gone down to great depths using...
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Paragraph on “Can water climb?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

Can water climb?   Water usually flows downwards, pulled by the force of gravity. However, in certain circumstances, it can move upwards or climb! If you place a thick and a thin plastic straw in a beaker of coloured Water, the water will rise up the straws above the level of the water in the beaker. The water will rise further up the thin straw than the thick straw. The ability...
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Paragraph on “What is a falconer?” complete paragraph for Class 9, Class 10, Class 11 and Class 12

What is a falconer? A falconer is a person who trains flying birds of prey for the purpose of catching wild quarry. It is one of the oldest sports in the world and falconers have been practising this sport in Western Europe since the fourth century. Hawking birds, as the birds used for falconry are generally called, are divided into two groups — the long-winged, dark-eyed falcons, which include such birds...
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