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CBSE Class 12

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Biology

Ecology & Environment

Water Pollution and its Control (in Hindi)

Lesson 2 of 5 • 54 upvotes • 14:07mins

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Aishwarya Kanwar

Water pollution biomagnification eutrophication BOD and related case study

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(Hindi) Environmental Issues: Class 12 NCERT

5 lessons • 49m

1

Air Pollution and its Control (in Hindi)

10:20mins

2

Water Pollution and its Control (in Hindi)

14:07mins

3

Solid Waste, Radioactive Waste, Agrochemical and their Effect (in Hindi)

10:00mins

4

Green House Effect Global Warming and Ozone Depletion (in Hindi)

9:48mins

5

Deforestation (in Hindi)

5:22mins

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