NCERT Class 10 Geography Chapter 6 Manufacturing Industries Solutions
Short Introduction
Manufacturing Industries play a vital role in the economic development of a country. They help transform raw materials into valuable finished goods, generate employment opportunities, reduce dependence on agriculture, and contribute significantly to exports. This chapter explains different types of industries, major manufacturing industries in India, industrial pollution, and environmental protection measures.
Quick Information Box
| Particular | Details |
|---|---|
| Chapter Name | Manufacturing Industries |
| Class | 10 |
| Subject | Geography |
| Book | Contemporary India-II |
| Chapter Number | 6 |
| Main Topics | Manufacturing, Industrial Classification, Textile Industry, Iron & Steel Industry, Pollution Control |
| Exam Importance | Very High |
Concepts Used (Topics Covered)
• Meaning of Manufacturing
• Importance of Manufacturing Industries
• Classification of Industries
• Agro-based Industries
• Mineral-based Industries
• Cotton Textile Industry
• Jute Industry
• Sugar Industry
• Iron and Steel Industry
• Aluminium Smelting Industry
• Chemical Industry
• Fertilizer Industry
• Cement Industry
• Automobile Industry
• Information Technology Industry
• Industrial Pollution
• Environmental Protection Measures
Important Formulas
Geography chapter contains conceptual learning. No numerical formulas are involved.
Important Industrial Ratio:
Iron Ore : Coking Coal : Limestone = 4 : 2 : 1
Exercise Solutions
Question 1 (i)
Multiple Choice Question
Which one of the following industries uses bauxite as a raw material?
A. Aluminium Smelting
B. Cement
C. Paper
D. Steel
Solution
Bauxite is the principal raw material used in the production of aluminium.
Correct Answer
✅ A. Aluminium Smelting
Explanation
Aluminium is extracted from bauxite ore through the smelting process.
Question 1 (ii)
Multiple Choice Question
Which one of the following industries manufactures telephones, computers, etc.?
A. Steel
B. Electronic
C. Aluminium Smelting
D. Information Technology
Solution
Electronic industries manufacture telephones, computers, televisions, communication equipment, and other electronic products.
Correct Answer
✅ B. Electronic
Explanation
The electronics industry produces a wide variety of communication and computing devices.
Question 2 (i)
What is manufacturing?
Answer
Manufacturing is the process of producing goods in large quantities by converting raw materials into more valuable finished products using machinery, labor, and technology.
Explanation
Examples include:
• Sugar from sugarcane
• Paper from wood
• Steel from iron ore
Question 2 (ii)
What are basic industries? Give an example.
Answer
Basic industries are industries that provide raw materials to other industries for manufacturing different products.
Example
Iron and Steel Industry.
Explanation
Steel produced by this industry is used in engineering, automobile, construction, and machinery industries.
Question 3 (i)
How do industries pollute the environment?
Step-by-Step Solution
Industries contribute significantly to environmental pollution in the following ways:
1. Air Pollution
Industries release harmful gases such as:
• Sulphur dioxide
• Carbon monoxide
• Smoke and dust particles
These affect human health and the atmosphere.
2. Water Pollution
Industrial waste and chemicals are discharged into rivers and lakes.
Examples:
• Acids
• Dyes
• Detergents
• Heavy metals
These contaminate water resources.
3. Land Pollution
Industrial solid waste is dumped on land, reducing soil fertility and contaminating groundwater.
4. Noise Pollution
Machines, generators, and industrial equipment produce excessive noise causing stress and hearing problems.
Conclusion
Industries pollute air, water, land, and create noise pollution, leading to environmental degradation and health hazards.
Question 3 (ii)
Discuss the steps to be taken to minimise environmental degradation by industry.
Step-by-Step Solution
Several measures can reduce industrial pollution:
1. Reuse and Recycle Water
Industries should reuse water in different stages of production.
2. Rainwater Harvesting
Collected rainwater can reduce dependence on groundwater.
3. Treatment of Effluents
Industrial wastewater must be treated before discharge.
Primary Treatment
• Screening
• Grinding
• Sedimentation
Secondary Treatment
• Biological treatment
Tertiary Treatment
• Chemical and physical treatment
• Recycling of water
4. Air Pollution Control
Factories should install:
• Electrostatic precipitators
• Scrubbers
• Fabric filters
5. Cleaner Fuels
Use oil and natural gas instead of coal wherever possible.
6. Noise Reduction
• Install silencers
• Use sound-absorbing materials
• Provide ear protection to workers
7. Afforestation
Develop green belts around industrial areas.
Conclusion
Proper waste management, pollution control devices, recycling, and environmental monitoring can significantly reduce industrial pollution.
Activity Answers
One Word Answers
(i) Used to drive machinery (5)
Answer: Power
(ii) People who work in a factory (6)
Answer: Worker
(iii) Where the product is sold (6)
Answer: Market
(iv) A person who sells goods (8)
Answer: Retailer
(v) Thing produced (7)
Answer: Product
(vi) To make or produce (11)
Answer: Manufacture
(vii) Land, Water and Air degraded (9)
Answer: Pollution
Puzzle Activity Answers
- Agro-based Industries
- Sugarcane
- Jute
- Iron and Steel Industry
- Bhilai
- Varanasi
Common Mistakes
❌ Confusing agro-based industries with mineral-based industries.
❌ Writing bauxite as the raw material of steel.
❌ Ignoring environmental pollution types.
❌ Forgetting examples of basic industries.
❌ Mixing electronics industry with IT services.
Exam Tips
✅ Learn industrial classifications carefully.
✅ Remember important examples:
• Cotton Textile
• Jute
• Sugar
• Iron and Steel
• Cement
✅ Memorize the Iron Ore : Coal : Limestone ratio (4 : 2 : 1).
✅ Prepare short notes on pollution control measures.
✅ Practice map-based industrial location questions.
Practice MCQs
1. Which industry is known as the backbone of economic development?
A. Agriculture
B. Manufacturing Industry
C. Transport Industry
D. Tourism Industry
Answer: B
2. Which state is famous for jute mills?
A. Rajasthan
B. Punjab
C. West Bengal
D. Gujarat
Answer: C
3. Which industry is called a basic industry?
A. Sugar Industry
B. Textile Industry
C. Iron and Steel Industry
D. Paper Industry
Answer: C
4. What is the raw material for aluminium?
A. Limestone
B. Bauxite
C. Coal
D. Iron Ore
Answer: B
5. Bengaluru is famous for which industry?
A. Jute Industry
B. Sugar Industry
C. Electronics and IT Industry
D. Cement Industry
Answer: C
FAQ Section
Q1. What is manufacturing?
Manufacturing is the process of converting raw materials into finished goods on a large scale.
Q2. Why are manufacturing industries important?
They generate employment, increase national income, promote exports, and support agriculture.
Q3. Which is India’s most important basic industry?
The Iron and Steel Industry.
Q4. What is the main raw material for aluminium?
Bauxite.
Q5. Which industry is called self-reliant in India?
The Textile Industry.
Q6. What are the major forms of industrial pollution?
Air, Water, Land, and Noise Pollution.
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