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molecules, creating "ozone holes" primarily over Antarctica. Officers Pulse 2. Water Pollution

: Occurs when rain water pH drops below 5.6 due to dissolved oxides of sulfur and nitrogen. : Two main types are discussed: Classical (London) Smog (reducing) and Photochemical (Los Angeles) Smog (oxidizing, occurring in the presence of sunlight and cap O sub 3 Stratospheric Pollution : Primarily concerns the Ozone Layer Depletion environmental chemistry ncert pdf

of chemical species in the air, water, and soil. It emphasizes that while the environment is naturally balanced, human intervention introduces pollutants—substances that cause undesirable changes and harm living organisms. 1. Atmospheric Pollution molecules, creating "ozone holes" primarily over Antarctica

Before diving into the chemical reactions and atmospheric layers, it is essential to understand why the is such a sought-after resource. environmental chemistry ncert pdf