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Identify the coldest region among the following layers of atmosphere?

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Important Questions on Environmental Chemistry

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 14 - Environmental Chemistry>AP EAPCET - 20 Aug 2021 Afternoon>Q 5
The main constituent of enamel on the surface of teeth is:
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 14 - Environmental Chemistry>AP EAPCET 2021 (19-Aug Forenoon)>Q 6
Green chemistry refers to reactions which_____