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Food Borne Diseases:
If the food handler, like the cook, suffers from some infection and is not careful about washing his hands after defecation, the germs or eggs of worms will reach the food and people will get infected. Typhoid, bacillary dysentery and other stomach infections are. spread in this way. Flies sitting on food always deposit germs there, which they pick up while sitting on excreta or filth. Vegetables and fruits also get contaminated by night soil which is used as fertiliser. Food, which is exposed to flies or even air for long hours is likely to pick up bacteria which easily multiply in it. Such food gets "spoiled and could be a potent source of disease. In its strongest form it is called food poisoning. The common symptoms are abdominal cramps, nausea, vomiting. and diarrhoea. Generally bacteria are killed in heated food. but toxins produced by them are heat resistant.
Use of natural resources: you studied about various natural resources such as land, water, soil, minerals etc. You know that these resources are limited and precious. Therefore
Explain Myocardium Myocardium :- The middle layer of the heart wall.
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Starch is not soluble in water ?? It forms colloid in aqueous medium called as micelles. Iodine reacts with both amylose and amylopectin, but the former produces a co
Ingestion : The standard treatment for this type of poisoning is as follows: (1) Tell the casualty to spit out as much of the material as possible and then wash the mouth thoro
What is Soil Aeration Whatever may be the structure of aggregate, it introduces pores in the soils. These pores are filled by air and/or water and have a role in the plant grow
how semiconductor detector works
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