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To show that liquids exert pressure
Connect two 15 cm lengths of glass tubing or two transparent plastic soda straws with a short length of rubber tubing and attach them to an upright as shown in the diagram.
How to prepare hydrogen Hydrogen can be prepared from a dilute acid, like as hydrochloric or sulphuric, when it is chemically reacted with a metal like as zinc. The acid may be
what is nutrition?
Metabolism All of the organized chemical reactions in a cell which are under the control of enzymes.
Fission, and fusion energy: 'The Italian navigator has arrived in the new world' This coded message announced the beginning of the atoyic age on 2nd December? 1942. The 'n
Why did the continents spread apart? This is because of the heat generated from the earth's interior and earthquakes - the convection currents deep within the earth due to the m
What is the meaning of Manures The way fertilizers affect soil productivity, organic matters in soil are also associated with soil fertility. This is because a soil rich in or
similarity between granite and rhyolite
Pollution Now-a-days, you might have heard every one talking about pollution. What does pollution mean? Pollution is the addition to the environment (air, water, soil) of subst
Explain the Lubrication of food Dry food enters the mouth. It is moistened and lubricated by the saliva, before it can be made into a bolus ready for swallowing.
Control of soil erosion: The most significant measures of erosion control include (i) growth of grasses, shrubs and trees on soils and (ii) construction of a drainage system w
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