FROM A BOOK FAIR SHASHANK BOUGHT x BOOKS AT THE RATE OF RS.9 PER BOOK AND 7 BOOKS AT THE RATE OF x PER BOOK AND 10 BOOKS AT THR RATE OF RS.y PER BOOK HOW MANY RUPEES DID HE SPEND ???
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The taiga itself is an important contributing factor to the development of permafrost. The latter stages of forest growth—characterized by development of an intact forest canopy, growth of an insulating moss cover in summer, and accumulation of forest litter—may cool the soil to such an extent that permafrost develops.
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