Lessons
22 lessons ā¢ 3h 52m
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Course Overview (in Hindi)
4m 16s
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Concept of Environment for Railway Group D (in Hindi)
11m 21s
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Pollution and Types of pollutants for Railway Group D (in Hindi)
10m 32s
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Types of Pollution (Part-1) for Railway Group D (in Hindi)
11m 23s
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Types of Pollution (Part-2) for Railway Group D (in Hindi)
11m 48s
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Types of Pollution (Part-3) for Railway Group D (in Hindi)
10m 05s
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Types of pollution (Part-4) for Railway Group D (in Hindi)
9m 30s
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Types of Pollution (Part-5) for Railway Group D (in Hindi)
9m 33s
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Green House Effect for Railway Group D (in Hindi)
9m 05s
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Acid Rain and Ozone depletion for Railway Group D (in Hindi)
10m 52s