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How to make a filter
A plant pot with a plug of cotton wool in the bottom and a layer of sand a few inches deep makes a satisfactory filter for many purposes.
Make some muddy water by stirring earth in a dish of water. Pour the water into the filter and catch it in a clear glass as it drips out. See if you can better the filter by building it up with alternate layers of sand and powdered charcoal. like a filter will work very well for clarifying water before it is boiled for drinking purposes.
Hypersecretion of Adrenocortical Hormones during Childhood Children suffering from hypersecretion of adrenocortical activity are described as Infant Hercules. There is too earl
What is asthenospher? Ans) The asthenosphere is a layer of the earth crust.
What is Immunity? Amino acids are involved in giving immunity by maintaining the vulnerable surfaces of the body in such a way so as to resist infections. Most of the external
factors which decide the broad area of Scientific activity
Diagnosis and Prognosis: The diagnosis and prognosis of disease were done directly by seeing, hearing, smelling and touching all external human organs and human waste and of
Classification of Hazardous Chemicals : The classification of chemical hazards as recommended by the UN Committee of Experts on the Transport of Dangerous goods has been widely ad
Conservation of mineral resources: Mineral reserves are present in a limited quantity and they can be exhausted. At the present rate of consumption many of them will not last
Chemical reactivity : The substances which react violently or produce flame on contact with water can be given suitable chemical treatment to convert them into nonreactive form be
When, in the geological time scale, did dinosaurs first appear: Triassic
if a force of 26 n is exerted on two baLLS one with a mass of 0.52kg ands the other with mass of 0.78kg which ball will have the greater acceleration explain
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