What is Biosphere? | Class 9 Biology | 2023-24

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✅ In this video,

✔️ Class: 9th
✔️ Subject: Biology
✔️ Chapter: Natural Resources
✔️ Topic Name: What is Biosphere?

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00:00 Introduction: What is Biosphere?
00:23 Biosphere
21:18 Website Overview
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Points covered in this video:-
Earth's crust + Atmosphere (occupied by living organisms)
It is divided into three physical division:
Lithosphere (land)
Outer solid crust of Earth
Hydrosphere (water)
Water component of Earth
75% of Earth’s surface covered by water
Example: seas, rivers, ponds, dams, underground water
Atmosphere
Blanket of air
Covers the whole earth
Biosphere has two components:
Biotic Component - Living beings
Abiotic Component - Air, water, soil
Biotic and Abiotic components provide resources.
Resources are required to meet basic needs of life forms.
Energy is obtained from sun. .

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