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Oxygen Cycle and Ozone Layer
Lesson 12 of 14 • 15 upvotes • 7:11mins
Shashank Rajak
This lesson explains oxygen cycle and the importance of Ozone layer.
Natural Resources - NCERT Class 9
14 lessons • 1h 52m
1
Course Overview
5:40mins
2
Meaning of Natural Resources
8:13mins
3
Air - Composition and Climate Control
8:27mins
4
Air - Winds and Rainfall
7:01mins
5
Air Pollution
7:50mins
6
Water
6:49mins
7
Water Pollution
10:19mins
8
Soil and Soil Erosion
10:56mins
9
Water Cycle
5:08mins
10
Carbon Cycle
4:03mins
11
The Greenhouse Effect
6:31mins
12
Oxygen Cycle and Ozone Layer
7:11mins
13
Problems for Practice - (MCQs 1-10)
12:03mins
14
Problems for Practice - (MCQs 11-20)
12:10mins
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