Q.72 Match List I with List II
| LIST I | LIST II |
|---|---|
| A. Tokyo-Yokohama asthma B. Leaf tip burn C. Fish graveyards D. Global warming |
I. Photochemical smog II. Acid rain III. Fluoride pollution IV. HFCs |
Choose the correct answer from the options given below:
(B) A-I, B-III, C-II, D-IV
(C) A-II, B-I, C-III, D-IV
(D) A-III, B-I, C-IV, D-II
The correct answer is option (B): A-I, B-III, C-II, D-IV. This NEET environmental pollution matching question links specific effects to their pollution causes.
Correct Matching
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A. Tokyo-Yokohama asthma → I. Photochemical smog: Severe air pollution in post-WWII Tokyo-Yokohama industrial areas caused asthma epidemics due to photochemical smog from vehicle emissions and factories.
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B. Leaf tip burn → III. Fluoride pollution: Fluoride from industrial emissions accumulates in plant leaf margins, causing characteristic tip necrosis and burn symptoms.
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C. Fish graveyards → II. Acid rain: Acidified water bodies from SO₂/NOₓ emissions kill aquatic life, creating dead zones known as fish graveyards.
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D. Global warming → IV. HFCs: Hydrofluorocarbons (HFCs), potent greenhouse gases used in refrigeration, contribute significantly to global warming.
Option Analysis
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(A) A-I, B-II, C-IV, D-III: Wrong—B (Leaf tip burn) not acid rain; C (Fish graveyards) not HFCs; D not fluoride.
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(B) A-I, B-III, C-II, D-IV: Correct as detailed above.
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(C) A-II, B-I, C-III, D-IV: Wrong—A (Tokyo asthma) not acid rain; B not photochemical smog; C not fluoride.
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(D) A-III, B-I, C-IV, D-II: Wrong—A not fluoride; B not photochemical smog; C not HFCs; D not acid rain.
Introduction to Tokyo-Yokohama Asthma Leaf Tip Burn Matching
Master Tokyo-Yokohama Asthma Leaf Tip Burn Fish Graveyards Global Warming Match List I List II for NEET Environmental Science with correct answer (B). Connect Tokyo-Yokohama asthma to photochemical smog, leaf tip burn to fluoride pollution, fish graveyards to acid rain, and global warming to HFCs—crucial for pollution effect identification questions.
Pollution Effects Decoded
Tokyo-Yokohama asthma (Photochemical smog I): Post-war industrial smog (NOx + sunlight → ozone) triggered asthma epidemics in Japan.
Leaf tip burn (Fluoride pollution III): Industrial HF gas causes marginal leaf necrosis—classic bioindicator of aluminum/fertilizer plants.
Fish graveyards (Acid rain II): pH drop below 5.0 kills fish populations in lakes/rivers from SO₂ emissions.
Global warming (HFCs IV): CFC replacements with 1000x CO₂ warming potential drive climate change.
Why Option (B)
Common traps swap fluoride effects (leaf burn) with acid rain or confuse HFCs (global warming) with photochemical smog. Memorize: “Tokyo-Smog, Leaf-Fluoride, Fish-Acid, Global-HFC”.
