Our Environment In ONE SHOT | Class 10 Science Chapter 13 (Theory + PYQs) | Samridhi Sharma

👉Handwritten + PDF Notes Link - https://physicswallah.onelink.me/ZAZB... Our Environment In ONE SHOT | Class 10 Science Chapter 13 (Theory + PYQs) | Session by Samridhi Sharma Ma'am 👉 All Subjects Sample Papers: https://shorturl.at/qTfJF 👉 Telegram Channel link - https://t.me/samridhisharma_Maam 👉 CBSE Question & Concept Bank (QCB) Class 10 Science - https://store.pw.live/products/cbse-q... Master Our Environment Class 10 Science Chapter 13 in ONE SHOT with Samridhi Sharma (PW) 🌍. Full NCERT + PYQs explained — covering Ecosystem, Food Chains, Trophic Levels, Energy Flow, and Ozone Depletion. Perfect for CBSE Class 10 Board Exams 2025–26, quick revision, and concept clarity in Biology. 💯 Timestamps 00:00 Introduction 01:35 What is Ecosystem 06:10 Types of Ecosystem 08:30 Natural and Artificial Ecosystem 12:04 Components of Ecosystem 18:10 Decomposer 21:04 Functioning of Decomposer 25:22 Questions 28:50 Food Chain 30:55 Trophic Level 32:30 Terrestrial and Aquatic food chain 36:18 10% Law of Energy Transfer 42:15 Questions 46:50 Food Web 51:40 Biomagnification 59:30 Layers of Atmosphere 01:03:00 Environmental problem and it's management 01:05:45 Types of waste 01:07:25 Waste Management 01:10:35 Questions 01:17:10 Thank you 60ae2a26ca2f69001802f402 #OurEnvironment #Class10Science #SamridhiSharma #PW #Class10 #CBSE2026 #BiologyClass10 #ScienceOneShot #NCERTClass10 #BoardExamPrep #StudyWithPW