Question:
Which one of the following is INCORRECT about the impact of atmospheric pollution and emission of Greenhouse gases ?
Which one of the following is INCORRECT about the impact of atmospheric pollution and emission of Greenhouse gases ?
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Remember the difference: Global Warming happens in the troposphere (lower atmosphere) due to GHGs, while Ozone Depletion happens in the stratosphere (upper atmosphere) due to CFCs.
Updated On: May 20, 2026
- Warming of climate.
- Increase in stratospheric ozone layer.
- Contamination of food chains over sea.
- Regional smog.
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The Correct Option is B
Solution and Explanation
Concept:
Atmospheric pollution and greenhouse gas (GHG) emissions have wide-ranging environmental impacts, primarily affecting global temperatures, air quality, and the stability of various ecosystems.
Step 1: Evaluate Impacts on Climate and Air Quality.
The primary result of GHG emissions is the enhanced greenhouse effect, leading to the Warming of climate (1). Additionally, pollutants like nitrogen oxides and volatile organic compounds react in the presence of sunlight to form Regional smog (4), which degrades air quality and harms human health.
Step 2: Evaluate Ecosystem Impacts.
Pollutants such as heavy metals or persistent organic pollutants can settle in marine environments. Through bioaccumulation and biomagnification, these pollutants lead to the Contamination of food chains over sea (3), affecting marine life and humans who consume seafood.
Step 3: Evaluate the Ozone Layer Statement.
Atmospheric pollution, specifically the emission of Chlorofluorocarbons (CFCs), actually leads to the depletion of the stratospheric ozone layer, not its increase. Therefore, the statement that pollution causes an "Increase in stratospheric ozone layer" is incorrect.
Step 1: Evaluate Impacts on Climate and Air Quality.
The primary result of GHG emissions is the enhanced greenhouse effect, leading to the Warming of climate (1). Additionally, pollutants like nitrogen oxides and volatile organic compounds react in the presence of sunlight to form Regional smog (4), which degrades air quality and harms human health.
Step 2: Evaluate Ecosystem Impacts.
Pollutants such as heavy metals or persistent organic pollutants can settle in marine environments. Through bioaccumulation and biomagnification, these pollutants lead to the Contamination of food chains over sea (3), affecting marine life and humans who consume seafood.
Step 3: Evaluate the Ozone Layer Statement.
Atmospheric pollution, specifically the emission of Chlorofluorocarbons (CFCs), actually leads to the depletion of the stratospheric ozone layer, not its increase. Therefore, the statement that pollution causes an "Increase in stratospheric ozone layer" is incorrect.
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