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A great video lecture conducted by experienced biology teacher on 12th class biology chapter 27 topic1 introduction chapter 27. Get full understanding or ask any questions.

Introduction Chapter 27, ch 27, lec 1, Introduction Chapter 27 - Inter Part 2 Biology

20:31

Renewable and Non Renewable Resource, ch 27, lec 1, Introduction Chapter 27 - Inter Part 2 Biology

2:14

Renewable Resource Land Soil, ch 27, lec 1, Introduction Chapter 27 - Inter Part 2 Biology

12:29

Geothermal Energy, ch 27, lec 1, Introduction Chapter 27 - Inter Part 2 Biology

2:52

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