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Nonionising Radiations : As stated earlier the radiation hazards are not limited to ionising radiations from radioactive materials. There are a number of other radiation sources in the laboratories which are potentially hazardous.
why does the periodic table useful to scientist
Which is primarily involved in the movement of a glacier: gravity
Minerals and vltamins Minerals and vltamins are not a source of energy but they are necessary in many of the steps involved in the release of energy in the cells. Thus, t
is salt separated by filtration
how does fungusreproduce
For chemically reactive wastes : The chemical property of the waste could be used in its removal in a number of ways as given below: i) Some water-reactive waste could be dispo
A bottle barometer A bottle, partially filled with water, is overturned with its neck under the surface of more water in a saucer. This is the device used as a chicken feeder,
Origins of Science: We have seen that the primitive human beings acquired different kinds of knowledge from the use of implements and tools, from cooking on fire. from huntin
Curing methods: The most impbrtant curing methods were classified under five heads, namely, inducing vomiting, giving purgative, enem;, oily enema and nasal therapy. Specifi
Give a rock name for sample. Note that the colour of this type of rock varies greatly, depending on the abundance of organic matter and iron oxides. Samples are both carbonate rock
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