Lessons

77 lessons • 17h 37m

12th ncert - Air Pollution And Its Control

13m 10s

12th ncert - Controlling Vehicular Air Pollution : A Case Study In Delhi

12m 36s

12th ncert - Domestic Sewage And Industrial Effluents

14m 54s

12th ncert - A Case Study Of Integrated Waste Water Treatment

10m 14s

12th ncert - Water Pollution And Its Control

7m 37s

12th ncert - Solid Wastes

9m 42s

12th ncert - Case Study Of Remedy For Plastic Waste

11m 56s

12th ncert - Agro - Chemicals And Their Effects + A Case Of Organic Farming

14m 52s

12th ncert - Radioactive wastes And Greenhouse Effect

14m 58s

12th ncert - Ozone Depletion In The Stratosphere

14m 09s

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