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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.
Zoology: The domestication of animals like horses and elephants and their use in warfare necessitated the study of their anatomy and physiology. A survey of Vedic literature h
Why are nematodes agriculturally very important? Nematodes are the abundant soil microfauna. Being predatory and saprophytic in nature they cause a loss of vigour of the root
Illustrate about the Soil Water Water, as you are well aware, is the most common substance on earth which is essential for life. Plants require water continually to satisfy t
Military Applications: Another area where the above mentioned properties of lasers are being used with a 'deadly' precision is that of military applications. Lasers have been
The physico-chemical properties of cyanocobalamin are as follows: a) The vitamin can be obtained in a crystalline form. b) It is freely soluble in water. c) Crystal
What is the rock cycle explain breifly? The rock cycle is the full "life" of a rock from its original formation to its demise through weathering, and rebirth through recrystall
Measuring atmospheric pressure with a bicycle pump A bicycle pump with the washer reversed as represents can be used to calculate atmospheric pres- sure. The piston can be made
Solar energy: The energy we get today from the fossil fuels like coal, is in reality sun's energy, trapped in them millions of years ago. Plants make their food and grow bec
Determine about the Physico-chemical parameters The possible combination of various elements found in the earth's crust gives rise to a large number of minerals. Out of all the
what are the problems
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