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Core Concept Summary

Module 2: Pollution, Smog & International Treaties

Anthropogenic pollution impacts air, water, and climate systems. International frameworks like the Montreal Protocol, Stockholm Convention, and Basel Convention establish phase-out schedules for pollutants.

Module Evaluation

5-Question Knowledge Check

Score: 0 / 5
Q1. The Montreal Protocol (1987) is specifically designed to phase out:
Greenhouse gases
Ozone Depleting Substances (ODS)
Persistent Organic Pollutants
Heavy metal effluents
Solution: The Montreal Protocol mandates the phase-out of CFCs and related ODS.
Q2. What is the primary pollutant present in photochemical smog?
Ground-level Ozone (O3)
Carbon Monoxide
Sulfur Dioxide
Methane
Solution: Photochemical smog forms when sunlight triggers reactions producing ground-level ozone.
Q3. Minamata disease results from environmental contamination by:
Lead
Arsenic
Methylmercury
Cadmium
Solution: Minamata disease results from severe industrial methylmercury bioaccumulation in fish.
Q4. The Stockholm Convention is a global treaty aimed at eliminating:
Persistent Organic Pollutants (POPs)
Nuclear waste
Microplastics
Lead in paints
Solution: The Stockholm Convention restricts toxic, bio-accumulative chemicals.
Q5. The protective stratospheric ozone layer is concentrated at an altitude of:
5 to 10 km
15 to 35 km
50 to 80 km
85 to 120 km
Solution: The stratospheric ozone shield peaks between 15 and 35 km above the Earth.
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