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Murli Pandey 6 years, 11 months ago
Contamination of air by various harmful pollutants such as carbon monoxide (CO), Sulphur Dioxide (SO2) is a termed as air pollution.
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Varun Banda 7 years ago
The formula for calcium carbonate is CaCO3 and the relative atomic mass of calcium is 40, of carbon is 12 and of oxygen is 16. In calcium carbonate, we have one atom of calcium, one of carbon and three of oxygen. So, the formula weight of calcium carbonate is: 40+12+48=100.
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Ilu Ahirwar 7 years, 2 months ago
Home science is the science of a home and it includes all the things that concern the person, home, family members and resources. It is the education for "better living" and the core of this education is the family ecosystem.
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