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CBSE Class 9

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Science

Our Environment

Biogeochemical Cycles

Lesson 7 of 10 • 10 upvotes • 9:48mins

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Kumari Jyoti

Biogeochemical cycle; water cycle, oxygen cycle, carbon cycle and nitrogen cycle

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Class 9 NCERT - Natural Resources

10 lessons • 1h 17m

1

Overview

3:38mins

2

Earth

8:42mins

3

Air and Atmosphere

8:15mins

4

Water

8:26mins

5

Soil and its Various Minerals

8:16mins

6

Types of Pollution

7:39mins

7

Biogeochemical Cycles

9:48mins

8

Ozone Layer

7:56mins

9

Summary

8:05mins

10

Question Answer Sessions

6:43mins

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