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CBSE Class 9

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Science

Our Environment

Nitrogen Cycle (in Hindi)

Lesson 10 of 15 • 54 upvotes • 10:46mins

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Shashank Rajak

This lesson deals with nitrogen cycle and it's significance.

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(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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