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Poisonous and Infectious Substances : These are the substances liable to cause death or serious injuries to health, if swallowed or inhaled or allowed to come in contact with skin. Infectious substances are those contaminated with disease inducing micro-organisms. The examples of poisonous substances are, pesticides, tetraethyllead and many drugs etc. The contaminated hospital wastes, strains of pathogens etc. Are considered infectious substances.
what properties does a desk have
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
Ligases (synthetases) These enzymes (code EC 6) catalyze the linkage of two molecules coupled with the hydrolytic breakdown of a pyrophosphate bond in ATP or an analogous co
methods of heat transfer
Precautionary Measures Against Ionising Radiations The following guidelines are suggested for experiments using low activity radioactive materials: (1) Avoid skin contact
What is Transamination Reaction ? Most common amino acids can be converted into the corresponding keto acid by 'transamination. In this reaction, there is a transfer of a-amin
How do minerals become rocks and rocks become soil? Ans) Minerals become rocks by pressure and temperature, often deep inside the earth's core, or easily through pressure for i
Brain: The centre piece of the nervous system is the brain which IS possibly the most organised form of matter known. It is unlike any other organ of the body, as ~t alon
b) discuss briefly the scientific and technical achievements of the bronze age
I can''t identify which tree this is
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