Скачать или смотреть Our Environment Full Chapter in ONE SHOT CBSE Class 10 Science Chapter 13 NCERT-2015-26

Our Environment | Full Chapter in ONE SHOT | CBSE Class 10 Science Chapter 13 | NCERT | 2025-26 | Lecture by Aarushi Tuli Ma'am

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Complete Our Environment Class 10 Science Chapter 13 in ONE SHOT with full NCERT coverage—ecosystem, food chains, trophic levels, energy flow, ozone depletion, waste management, and PYQs explained clearly. Perfect for CBSE Class 10 Board Exams 2025–26 and last-minute Biology revision.

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Timestamps
00:00​ Introduction
00:38​ Topics to be covered
00:56​ What is Environment
02:48​ World Environment Day
03:22​ Ecosystem
04:18​ Types of Ecosystem
05:58​ Natural Ecosystem
06:48​ Terrestrial Ecosystem
07:14​ Aquatic Ecosystem
07:54​ Artificial Ecosystem
09:10​ Components of Ecosystem
11:25​ Biotic Components
14:20​ Food Chain
20:16​ Ten Percent Law of Energy Transfer
24:12​ Food Web
24:55​ Biomagnification
28:45​ Concentration of Chemical/Pollutant
29:10​ Environmental Problems and it's Management
29:46​ Ozone
31:25​ Cause and Effect of Ozone Layer Depletion
33:26​ Montreal Protocol
34:46​ Types of Waste
37:23​ Waste Management
41:07​ Thank you


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