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shamir_69 27-12-2012
shamir_69 - Bidhan Chandra Krishi Viswa Vidyalaya
A chemical element can be a element that cannot follow separated through substance signifies. Components usually are defined by the quantity of protons that they get.
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shantinath_111 28-12-2012
shantinath_111 - Agra University
Things can't be decreased to be able to less complicated materials simply by regular chemical like means.
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