Manufacturing Industries

Class 10 Geography � Chapter 06

1. Importance of Manufacturing

Manufacturing sector is considered the backbone of development.

Modernizing Agriculture: Provides tools, fertilizers, thus reducing dependence on agriculture income.
Job Creation: Secondary and Tertiary sectors.
Export Income: Brings foreign exchange.
Prosperity: Transforming raw materials into finished goods adds value.

Note: Agriculture and Industry are not exclusive of each other. They move hand in hand. (Agro-industries depend on agriculture for raw material and sell products like pumps/pipes to farmers).

2. Industrial Location

Influenced by availability of: Raw material, Labour, Capital, Power and Market.

AGGLOMERATION ECONOMIES Many industries tend to come together to make use of the advantages offered by the urban centres (Banking, Insurance, Transport). This is called Agglomeration Economies.

3. Classification of Industries

A. Agro-Based Industries

Cotton Textiles: Initially in Maharashtra/Gujarat (Black soil, humid climate). Now decentralized.
Problem: Power supply erratic, low output of labour, competition from synthetic fibre.
Jute Textiles: Huge demand for gunny bags. Hub: Hugli basin (WB). Why? Proximity to jute producing areas, cheap water transport, cheap labour from Bihar/Odisha/UP.
Sugar Industry: India stands second in world. Seasonal nature. Shift from North (UP/Bihar) to South (Maharashtra) because cane there has higher sucrose content and cooler climate ensures longer crushing season.

B. Mineral-Based Industries

Iron and Steel: Basic industry (Heavy). Raw materials (Iron ore, Coking coal, Limestone) ratio is roughly 4 : 2 : 1.
Chotanagpur Plateau: Maximum concentration of steel industries due to low cost of iron ore, high grade raw material in proximity, cheap labour.
Aluminium Smelting: Second most important metallurgical industry. Light, resistant to corrosion. Bauxite is raw material (bulky, dark reddish rock). Electricity intensive.
Chemical Industries: Fast growing. Organic (Petrochemicals) and Inorganic (Sulphuric acid, Soda ash).
Automobile: Delhi, Gurgaon, Mumbai, Pune, Chennai. (Post-liberalization boom).
IT and Electronics: Bengaluru (Electronic Capital). Key feature: High employment generation (BPO).

4. Industrial Pollution and Environmental Degradation

Air Pollution: High proportion of Sulphur Dioxide ($SO_2$) and Carbon Monoxide. Smoke from chimneys. Causes respiratory problems.
Water Pollution: Dumping of organic/inorganic industrial wastes into rivers (Dyes, Detergents, Acids, Heavy metals like Lead/Mercury). Main culprits: Paper, pulp, chemical, textile, tannery.
Thermal Pollution: Hot water from factories drained into rivers without cooling. Kills aquatic life.
Noise Pollution: Causes irritation, anger, hearing impairment, BP.

5. Control of Environmental Degradation

Minimizing use of water by reusing/recycling (Two or more stages).
Rainwater harvesting.
Treating hot water/effluents before releasing.

WASTE WATER TREATMENT 1. Primary: Mechanical (Screening, Grinding).
2. Secondary: Biological ( bacterial action).
3. Tertiary: Biological, Chemical and Physical (Recycling).

NTPC Role: ISO certification for EMS 14001. Proactive approach for preserving environment (Ash utilization, Green belts, Ecological monitoring).

[IMAGE PLACEHOLDER: INDUSTRIAL MAPS]

Map of India showing: 1. Software Technology Parks (Noida, Gandhinagar, Mumbai, Pune, Bengaluru, Hyderabad, Chennai). 2. Iron and Steel Plants (Durgapur, Bokaro, Jamshedpur, Bhilai, Vijaynagar, Salem). 3. Cotton Textile Centers (Mumbai, Indore, Surat, Kanpur, Coimbatore).