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Sia ? 4 years, 5 months ago

Minerals- A mineral is composed of the same substance throughout. There are about 3000 different minerals in the world. Minerals are made of chemicals - either a single chemical or a combination of chemicals. There are 103 known chemical elements. Minerals are sorted into 8 groups.
Ore- A mineral occurring in sufficient quantity and containing enough metal to permit its recovery and extraction at a profit. Or, a mineral or an aggregate of minerals from which a valuable constituent, especially a metal, can be profitably mined or extracted is an ore.

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Atul Maurya 7 years, 9 months ago

23√2
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Chandrashekhar Wankhede 7 years, 9 months ago

Find midpoint C of AB by midpoint formula. By distance formula length AB = 7 units. Let point D is at a distance of 14 units from C but nearer to B. Hence BD = 10.5 units and CB = 3.5 units. Hence B divides CD internally in ratio 1:3. Now we can find co-ordinates of D by using section formula.. Similarly we can find co-ordinates of Extreme Point nearer to A.
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Sreya Tejesvi 7 years, 9 months ago

CNG
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Nitesh Mishra 7 years, 9 months ago

Coelm is body cavity

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