Air Pollution
🌬️ Air and Its Composition 🔹 Definition of Air: Air is a mixture of gases that forms the Earth’s atmosphere. It is not a compound, as it contains different gases physically mixed together and not chemically combined. 🔹 Volume Composition of Dry Air: Gas Percentage by Volume Nitrogen (N₂) 78% Oxygen (O₂) 21% Argon (Ar) […]