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Oxygen Cycle and the Ozone Layer (in Hindi)
Lesson 13 of 15 • 29 upvotes • 11:49mins
Shashank Rajak
This lesson explains oxygen cycle and the importance of Ozone layer.
(Hindi) Science Class 9 - Natural Resources
15 lessons • 2h 36m
1
Course Overview (in Hindi)
5:42mins
2
Meaning of Natural Resources (in Hindi)
12:15mins
3
Air - Composition and Climate Control (in Hindi)
11:22mins
4
Air - Winds and Rainfall (in Hindi)
12:02mins
5
Air Pollution (in Hindi)
9:20mins
6
Water (in Hindi)
11:24mins
7
Water Pollution (in Hindi)
13:44mins
8
Soil (in Hindi)
14:42mins
9
Water Cycle (in Hindi)
5:56mins
10
Nitrogen Cycle (in Hindi)
10:46mins
11
Carbon Cycle (in Hindi)
6:05mins
12
The Greenhouse Effect (in Hindi)
7:44mins
13
Oxygen Cycle and the Ozone Layer (in Hindi)
11:49mins
14
Problems for Practice - MCQs 1-10 (in Hindi)
12:45mins
15
Problems for Practice - MCQs 11-20 (in Hindi)
11:09mins
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