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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 Evolution The question of how life came into being in the first place still remained unanswered. To find an answer to this question means looking back billions of y
Exploration of resources Exploration of resources involves complex techniques which depend on the physical, chemical and biological properties of a particular resource. Now
Explain concept of Salting out Salting out: Proteins in aqueous medium can be precipitated by qdding, trichloroacetic acid (TCA) or perchloric acid (PCA). Salts of hea
Explain the Complement System To remove a microorganism by phagocytosis requires phagocytes at the right place in the right time. The organism should adhere to the phagocyte. M
describe the factors which decide the brad area of scientific activity
essay on friction is a necessary evil
A compressed air pop-gun Use a straight piece of glass or plastic tubing of 1 or 2 cm in diameter and 15 or 20 cm in length. Make a piston by twisting some string on a pencil t
The difference between hard and soft water Collect some hard water from a stream(or make some as defined in the next experiment). Also secure some soft water like as rain wate
it is with osmosis and diffusion what''s number 11
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