विज्ञान तकनीकी और पर्यावरण : प्रेमचन्द श्रीवास्तव द्वारा हिंदी पीडीऍफ़ पुस्तक – पर्यावरण | Vigyan Takaniki Aur Paryavaran : by Prem Chand Shrivastav Hindi PDF Book – Environment (Paryavaran)
Pustak Ka Vivaran : Aajakal paryavaran pradoushan manav samaj ke samaksh ek bahut badi samasya hai. Vaise to yah samasya bahut naveen nahin hai . Paryavaran ko kuchh na kuchh seema tak to manav svayan ateet kal se pradooshit karata aaya hai tatha pracheen bharateey maneeshi is pradooshan se bachav ki disha mein savadhan bhi rahe hai. Unhonne samay-samay par vayushodhan evan jalashodhan………….
Description about eBook : Nowadays environmental pollution is a big problem in front of human society. Well this problem is not very new. To some extent the environment has been polluting the environment from time to time, and ancient Indian intellectuals have also been careful in preventing this pollution. From time to time, air purification and water purification…………..
