Lesson 1 of 7 • 6 upvotes • 8:52 mins
पर्यावरण ,परिस्थितिकी, परिस्थितिकी तंत्र व परिस्थिति तंत्र के प्रकार
Environment, Ecology and Ecosystem (in Hindi)
8:52 mins
Factor of Ecosystem Biotic and Abiotic (in Hindi)
9:02 mins
Trophic Levels of Ecosystem EVS (in Hindi)
8:33 mins
Food Chain of Ecosystem EVS (in Hindi)
8:09 mins
Food Web of Ecosystem EVS (in Hindi)
8:28 mins
Ecological pyramids of EVS Part 6 (in Hindi)
11:38 mins
Law of energy and pyramid of energy Part 7 (in Hindi)
9:06 mins