Page : 72 Plastic No Itihas - Vividh Upyogo - Plastic Ni Kothari Ne Karane Thathu Pradushan - PVC Plastic Ni Pipo - Vest Mathi Wealth Nu Sarjan - Plastic Recycling Ane Paryavaran
Page : 136 Apatti Sanchalan - Samanya Mahiti - Tourism Ane Tirthkshetro - Kudarati Kop Ne Vakaravato Manvi No Vikas : Kedarnath Ghatana - Failin Vavajhoda Thi Thayeli Asaro - Abohava Na Parivartano - Globle Warming - Acid Varsha - Ozone Star No Hras
Page : 144 Mobile Tower - Entena Nu Radiation Ketlu Jokhami? - Mobile Phone Dharako Ne World Health Organisation Ni Chetavani - Mobile Technology : Sadupyog Ane Durupyog - Mobile Phone Ne \'Smart Phone\" Banavati 3G Technology - Internet, E-mail, SMS Tatha MMS Jevi Suvidhao
Page : 122 Suya Mandal - Vaan Elan Radiation Belt - Vividh Graho Ane Upgraho Na Darshan - Virat Surya - Tarao - Galaxy (Tara Vishva) Ni Samruddhi - Akashganga Ane Anya Tara Vishvo - Brahmand Nu Bandharan - Black Hole Ane Palsar - Brahmand Ni Sharuat - "Mission Caplure" - Brahand : Gaikal Ane Aaj
Page : 88 Pani Ni Agatyata - Pani-Varsad Ane Him Swarupe - Pani Mathi Vidhyut - Kutrim Varsad - Ganda Pani Nu Shuddhikaran - Jal Sanrakshan - Jal Vyavasthapa (Water Management) - Waer Treatment Plant - Pani No Vepar
Page : 48 Nano Technology Ane Nano Science - Agava Niyamo - Carbon Adharit Mulbhut Nano Bandharan - Nano Technology Nu Mahatva - Bhavi Padkaro No Samano - Nano Technology Ne Sparshata Agatya Na Kshetro
![Mobile Phone Ni Technolog](https://www.hariharbooks.com/474-home_default/mobile-phone-ni-technolog.jpg "Page : 144
Mobile Tower - Entena Nu Radiation Ketlu Jokhami? - Mobile Phone Dharako Ne World Health Organisation Ni Chetavani - Mobile Technology : Sadupyog Ane Durupyog - Mobile Phone Ne \'Smart Phone\")
