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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.
What is Parent material Parent material refers to the primary material from which the soil is formed. The parent material may be either a solid rock, a decomposed rock, organic
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Explain the Diaphragm The diaphragm is a muscular membranous partition separating the abdominal and thoracic cavities and functioning in respiration. It consists of a central
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Explain the property of Water Water has a significant property called surface tension that markedly influences its behaviour in soils and may be measured by level of water rise
Essential nutrients: Our body is a biochemical factory which can make many compounds for its needs. However, there are limits to this, and what our body cannot make has to be
Oxidoreductases To this group (EC 1) beIongs all enzymes catalyzing oxidation-reduction reactions. Common names include dehydrogenases, oxidazes, reductases and catalases.
Crystal Structure of Clays Most clay minerals have two types of basic structural units - tetrahedral and octahedral. The tetrahedral unit is 4- 4 SiO in which silicon
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