00534nam a22001817a 4500003000400000008004100004020001800045082001900063100002400082245004300106250002000149260006400169300001400233650002000247650003300267650002600300650002600326OSt230608b        |||||||| |||| 00| 0 eng d  a9788193422601  a363.7076bS52E  aShankar ias Academy  aEnvironment / cby Shankar ias Academy  a9th revised ed.  a.- Chennaib: Shankar IAS Academy Book Publicationsc, 2021  alvi,448p.  aSocial Sciences  aSocial Problems and Services  aEnvironmental Science  aQuestions and Answers