Lessons
18 lessons • 2h 28m
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Overview of the Course
1m 01s
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Air Pollution (in Hindi)
9m 42s
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Types of Gases- Their Source and Effect (in Hindi)
8m 37s
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Water Pollution (in Hindi)
9m 44s
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Soil Pollution (in Hindi)
10m 24s
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Types of Soil (in Hindi)
6m 38s
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Noise pollution
5m 20s
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MDG and SDG
10m 05s
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Natural Hazards
11m 37s
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Natural hazards (2)
7m 59s