Composition of Atmosphere|Lecture 2|Chapter 10|9th class Chemistry|New syllabus 2025

Welcome to Spark Within! 🌍✨ Where chemistry is taught with clarity, simplicity, and exam-smart strategies. 📚 In today’s lecture (Chapter 10 – Environmental Chemistry): We discuss the Composition of Atmosphere – the mixture of gases that surrounds our Earth and makes life possible. This lecture is designed for 9th-grade chemistry students to understand the basics as well as prepare for exams. 🔍 What you’ll learn in this video: Definition of the atmosphere and its importance Major gases present: Nitrogen, Oxygen, Argon, Carbon Dioxide, and others Role of each gas in supporting life and maintaining balance Importance of trace gases and their environmental effects Exam-focused points for MCQs, short questions, and constructed responses 🎯 A must-watch lecture to strengthen your concepts, revise effectively, and score well in exams. 📌 Subscribe to Spark Within for more concept-based chemistry lectures, MCQs, and smart exam prep strategies. 💡 The atmosphere: a protective blanket of life-saving chemistry!