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Youve to combine the information from chapter 25 and 27 of shankariass environment book available in english. Mcgraw hill education india presents an exclusive upsc webinar. Environment book launch at samkalp by former police commissioner delhi shri r s gupta ji and samkalp. In past, there used to be at least one question related to isronasas space missions. This book covers all the topics in the syllabus of preliminary exam.
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