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Personal sensitivity : There are other dangers from substances which are not so common. e.g. mutagens , but one aspect we have not mentioned involves you. The eyes, lungs and skin of different people can vary greatly in their sensitivity to chemicals. Also certain substances e.g., detergents, epoxy resins, disinfectants, dyes, nickel and chromium salts, are more likely than others to cause dermatitis and skin trouble. Most of these disorders can be overcome by simple hygiene, e.g. the use of gloves, etc. The situation is complicated by the fact that people may suddenly become sensitised and react to very minute amounts. A common example is a bee keeper who is used to stings may suddenly have to give up bee keeping because he has been sensitised which means that he has become allergic to bee sting and the next sting might kill him.
To study the relation between volume and pressure of air Get a rubber bung or 'door stop' which just fits in a narrow glass jar or measuring cylinder. Attach it to the lowe
PROCEDURE A. For Gas Supply Visit the LPG gas store room 1 cracking plant along with your counsellor or the lab in charge' and note the way supply of gas is regulated. It
Explain Passive transport or diffusion - Mechanism of Urine Formation Passive transport or diffusion: Diffusion means the random movement of particles in a fluid. The movement
Medicine: The other area, in which the Greek developments had a parallel in India, was medicine, although encouragement for this development in the two cases came from di
why- 1) alcoholic acidity is determined? 2) ash content is important factor in wheat flour? 3)carbohydrates and sugar are separately denoted on pachaging material?
1.Summarize the evidence supporting the theory that the Cretaceous-Tertiary extinction, which includes the extinction of the dinosaurs, was precipitated to a significant degree by
What are the part of the ear.
Plaster of Paris Secure some plaster of Paris and mix a small amount with water. It must be worked quickly or it will harden whereas being mixed. Place the mixture in moulds an
Advantages of water in chemical weathering Water is an essential factor of chemical weathering and when it contains dissolved salts and acids it is all the more effective. It
taken two oil samples A&B ,1st reaction A iodine value will be high and reichert meissl value will be low,and then 2nd reaction B iodine value low but reichert meissl value is high
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