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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.
How old is the earth Ans) The earth has only very freshly been accurately dated. Until astonishingly recently, the earth was thought to be anywhere among a few hundred thousand
What is movement of the Heart
why there is 28 day in february month
State the Role of Algae - Weathering Algae also plays an important role because it brings about increase in organic matter due to photosynthesis. The organic matter and CO2 fo
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Alfalfa A perennial hay crop of the highest quality.
The Maximum theoretical limit of channel is governed by Nyquist theorem, which says Bth = 2 x freq in hertz x log2L ( where L = number of level) Thus we have in this case Bth= 2x60
Nuclear Fission: Splitting the Atom You know that atoms are made up of a nucleus and electrons moving around the nucleus, and the nucleus is made up of protons and neutron
ACCIDENT REPORTING To start with, let us explain two closely related words, accident and incident. Accident is an unexpected or unplanned event. It may cause i) Harm to s
1. The red shift seen in all distant galaxies, whose size is proportional to its distance from us, what effect will this have on planet Earth?
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