Environmental Concerns
Telangana Open School (TOSS) · Class 12 · Chemistry
Complete topic list for Environmental Concerns in Telangana Open School (TOSS) Class 12 Chemistry. Key concepts, sub-topics, and what to focus on for board exams.
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Topics in Environmental Concerns
Components and Segments of Environment
- Environment consists of biotic (living) and abiotic (non-living) components.
- Biotic components include plants, animals, and microorganisms.
- Abiotic components include air, water, soil, sunlight, and temperature.
Types and Sources of Pollutants
- Pollutants are substances that cause harm when present in excessive amounts in the environment.
- Pollutants can be natural (e.g., volcanic SO₂, forest fires) or human-made (anthropogenic).
- Primary pollutants are released directly into the environment (e.g., CO, SO₂, NOₓ).
Effects of Pollution
- Air pollutants like SO₂ cause acid rain, which damages soil nutrients and corrodes buildings.
- CO binds with hemoglobin to form carboxyhemoglobin, reducing oxygen supply in blood.
- CFCs destroy ozone layer, leading to increased UV radiation and health risks.
Key Concepts
Central concept: Environmental Pollution
Frequently Asked Questions
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