Consider the following statements: Statement-I: Many chewing gums found in the market are considered a source of environmental pollution. Statement-II: Many chewing gums contain plastic as gum base. Which one of the following is correct in respect of the above statements?
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- ABoth Statement-I and Statement-II are correct and Statement-II explains Statement-I
- BBoth Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
- CStatement-I is correct, but Statement-II is incorrect
- DStatement-I is incorrect, but Statement-II is correct
Show answer
Answer: (A) Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
Correct Answer: (a) Both correct, and Statement-II explains Statement-I.
Statement I: Many chewing gums are a source of environmental pollution — ✓ CORRECT.
Discarded gum generates over 105 tonnes of plastic-like waste annually that is non-biodegradable.
Statement II: Many chewing gums contain plastic (polyvinyl acetate/PVA) as their gum base — ✓ CORRECT.
PVA is a polymer also used in making tyres and glue.
Why II explains I: Because the gum base is essentially plastic, when people spit out gum, it doesn't decompose — it pollutes the environment for thousands of years, just like other plastic waste.
Chewing gum creates over 105 tonnes of non-biodegradable plastic-like waste annually because the gum base contains polyvinyl acetate, the same polymer used in tyres and glue.
UPSC is testing whether students understand the connection between synthetic materials in everyday products and environmental pollution, not just obvious sources like plastic bags or bottles.
Chewing Gum Environmental Impact
Environment chewing gums environmental pollution
Chewing Gum as Environmental Pollutant: Composition & Impact
Most commercial chewing gums contain plastic polymers as gum base
Discarded gum generates 105+ tonnes of plastic-like waste annually
Gum waste is non-biodegradable and persists for thousands of years
Polyvinyl acetate (PVA) is the primary plastic component in gum base
Why Gum Pollutes
Modern chewing gum is essentially plastic food — the chewy texture comes from synthetic polymers, not natural tree resins like ancient gums. When spat out, these plastic components behave exactly like other plastic waste.
Gum Base Components
Component | Chemical Nature | Also Used In | Environmental Impact |
|---|---|---|---|
Polyvinyl Acetate (PVA) | Synthetic polymer | Tire manufacturing, Glue | Non-biodegradable plastic waste |
Polyisobutylene | Synthetic rubber | Inner tubes, Adhesives | Persistent environmental contaminant |
Wax & Fillers | Petroleum derivatives | Industrial applications | Slow degradation, microplastic formation |
Global Waste Statistics
Singapore spends millions annually removing gum from public spaces
UK cities report gum as second-largest litter component after cigarette butts
Single piece of gum can contaminate 1 square meter of pavement surface
Removal requires special heating equipment and chemical solvents
Gum Pollution Cycle
%%{init: {"flowchart": {"wrappingWidth": 460}}}%%
flowchart TD
s1["`**Manufacturing**
**Plastic polymers** mixed with sweeteners and flavors`"]
s2["`**Consumption**
Chewed until flavor is gone, typically **15-20 minutes**`"]
s3["`**Disposal**
Spat onto streets, stuck under furniture, or wrapped in paper`"]
s4["`**Environmental Persistence**
**Non-biodegradable** plastic remains for thousands of years`"]
s5["`**Microplastic Formation**
Breaks into smaller fragments, enters **food chain**`"]
s1 --> s2
s2 --> s3
s3 --> s4
s4 --> s5Question Connection
This UPSC question tested the causal link between gum composition and environmental impact. Statement II explains Statement I because plastic gum base is precisely why discarded gum becomes persistent pollution — it's essentially plastic waste disguised as food waste.
Trap: Thinking gum pollution is only about litter aesthetics — it's actually persistent plastic contamination
Trap: Assuming natural gums are still common — most commercial brands use synthetic polymers
Trap: Missing the causal relationship — Statement II directly explains why Statement I is true
Trap: Confusing biodegradable natural chicle with non-biodegradable synthetic gum base
Plastic Polymers in Consumer Products
Environment plastic gum base
Plastic Polymers: Hidden Sources & Environmental Concerns
Polyvinyl Acetate (PVA) is used in gum, glue, and tire manufacturing
Many consumer products contain plastic components not obvious to users
Synthetic polymers have replaced natural materials in most commercial products
Hidden Plastic Sources
Polyvinyl Acetate (PVA) exemplifies how the same plastic polymer serves multiple industries — from food-grade gum base to industrial adhesives. This cross-industry use explains why seemingly harmless consumer products can have significant environmental footprints.
Common Polymers Across Industries
Polymer | Consumer Use | Industrial Use | Environmental Concern |
|---|---|---|---|
Polyvinyl Acetate | Chewing gum base | Tire manufacturing, Wood glue | Non-biodegradable waste |
Polyethylene Glycol | Cosmetics, Medicines | Antifreeze, Solvents | Water contamination |
Polystyrene | Food containers | Insulation, Packaging | Microplastic formation |
Polyvinyl Chloride | Food wraps | Pipes, Flooring | Toxic chemical release |
PVA Applications
# Polyvinyl Acetate (PVA)
## Food Industry
- Chewing gum base
- Food packaging films
- Edible coatings
## Industrial Uses
- Tire manufacturing
- Adhesives & glues
- Textile sizing
## Environmental Impact
- Non-biodegradable
- Persistent pollution
- Microplastic sourceRegulatory Challenges
Food-grade polymers can still cause environmental pollution when discarded
Same chemical approved for food use may be restricted in other applications
Consumer awareness of plastic content in everyday products remains low
Biodegradable alternatives exist but cost 2-3 times more than synthetic polymers
Trap: Assuming food-grade means environmentally safe — PVA is safe to chew but pollutes when discarded
Trap: Thinking industrial chemicals and consumer products are separate — many polymers serve both
Trap: Missing that same plastic can have multiple environmental impact pathways
Non-Biodegradable Waste Management
Environment
Non-Biodegradable Waste: Challenges & Management Strategies
Non-biodegradable waste persists in environment for hundreds to thousands of years
Plastic waste forms largest component of non-biodegradable municipal solid waste
Extended Producer Responsibility (EPR) makes manufacturers responsible for product lifecycle
The Persistence Problem
Non-biodegradable materials like plastics, metals, and synthetic polymers accumulate faster than natural degradation processes can handle them. Unlike organic waste that decomposes within months, these materials require human intervention for proper management.
Degradation Timelines
Material | Natural Degradation Time | Management Strategy | India Policy |
|---|---|---|---|
Plastic bottles | 450-1000 years | Recycling, Chemical breaking | Plastic Waste Management Rules 2016 |
Chewing gum | 1000+ years | Special removal equipment | Covered under plastic waste rules |
Aluminum cans | 80-200 years | Metal recycling | E-Waste Management Rules |
Glass | Never degrades | Infinite recyclability | Municipal solid waste rules |
Waste Management Hierarchy
%%{init: {"flowchart": {"wrappingWidth": 460}}}%%
flowchart TD
s1["`****Reduce****
Minimize consumption and packaging — highest priority`"]
s2["`****Reuse****
Extend product life through multiple uses`"]
s3["`****Recycle****
Convert waste into new products`"]
s4["`****Recovery****
Extract energy or materials from waste`"]
s5["`****Disposal****
Safe containment in engineered landfills — last resort`"]
s1 --> s2
s2 --> s3
s3 --> s4
s4 --> s5India's Challenges
Mixed waste collection makes segregation and recycling difficult
Informal sector handles 60% of plastic waste recycling without safety standards
Single-use plastic ban implemented in 2022 for items like straws, cups, plates
Swachh Bharat Mission focuses on waste segregation at source
Trap: Confusing recyclable with biodegradable — plastics can be recycled but never biodegrade
Trap: Assuming small items like gum are negligible — they accumulate to massive pollution
Trap: Missing that waste management requires both technology and behavioral change
Statement-Explanation Question Pattern
Indian Polity Statement-I Statement-II
UPSC Statement-Explanation Questions: Analysis Strategy
Statement-Explanation questions test both factual accuracy and logical relationships
Option A requires both statements correct AND causal relationship
Check individual accuracy first, then logical connection
Question Structure
This question type presents Statement-I (usually an observation or fact) and Statement-II (usually an explanation or cause). Students must evaluate both factual correctness and whether Statement-II actually explains Statement-I.
Answer Options Analysis
Option | Statement-I | Statement-II | Relationship | When to Choose |
|---|---|---|---|---|
A | Correct | Correct | II explains I | Perfect causal link exists |
B | Correct | Correct | No explanation | Both true but unrelated |
C | Correct | Incorrect | N/A | Only first statement is factual |
D | Incorrect | Correct | N/A | Only second statement is factual |
Solving Strategy
%%{init: {"flowchart": {"wrappingWidth": 460}}}%%
flowchart TD
s1["`****Step 1: Evaluate Statement-I****
Is it factually correct? Use your subject knowledge.`"]
s2["`****Step 2: Evaluate Statement-II****
Is it factually correct independently of Statement-I?`"]
s3["`****Step 3: Check Explanation****
If both correct, does II actually CAUSE or EXPLAIN I?`"]
s4["`****Step 4: Eliminate Options****
Match your analysis to the four option patterns`"]
s1 --> s2
s2 --> s3
s3 --> s4Common Explanation Types
Causal explanation: Statement-II describes why Statement-I happens
Mechanistic explanation: Statement-II explains how Statement-I works
Compositional explanation: Statement-II describes what Statement-I is made of
Historical explanation: Statement-II provides the reason Statement-I developed
This Question Example
Statement-I (gum causes pollution) is explained by Statement-II (gum contains plastic) because plastic components are precisely why gum becomes persistent environmental pollution. This is a compositional explanation — the material composition directly causes the environmental impact.
Trap: Choosing Option A when statements are correct but unrelated — always verify the causal link
Trap: Rejecting factual statements because they seem obvious — UPSC tests basic facts too
Trap: Confusing correlation with causation — coincidental relationships don't count as explanations
Trap: Overthinking the explanation requirement — if Statement-II directly causes Statement-I, choose A