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Where to find fossils
In some localities fossils may be found in stone quarries or where there are rock out- crops. Try to search someone in the community who knows about fossils and then plan a field trip with the class to collect some of them.
Fossils can often be established by breaking lumps of soft or bituminous coal apart. Break the lumps carefully and study the broken surfaces for imprints of leaves and ferns
REQUIREMENTS 1. Stock register of a science laboratory 2. Loose paper sheets 3. Pen 4. Pencil 5. Rubber
For chemically reactive wastes : The chemical property of the waste could be used in its removal in a number of ways as given below: i) Some water-reactive waste could be dispo
discuss various types of screens and add a note on screening is a stratgy used in waste water plant
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Define Principle Colorimetric Method for the Estimation of Phosphorous? The proteins in the blood are precipitated with the help of trichloroacetic acid. The protein free filtr
Question 1. Describe the factors influencing the development of nosocomial infections 2. Explain briefly the standard precautions taken for infection control 3. Explain h
Q. How is harvest maturity identified? Maturity indices can be determined on the basis of : Number of days from setting, Sight-colour, size and shape, Touch-texture, hardness o
Important physico-chemical properties of pantothenic acid are as follows: a) Pantothenic acid is a pale yellow oily liquid that can only be crystallized as its sodium, potassi
A simple equal-arm lever Make a wooden base 15 cm square and 2 cm thick. In the centre of the base fasten one more block of wood 4 cm square and 3 cm thick. Fasten to two sides
working of calomel electrode
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