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Revision: Geography (Contemporary India-II) >> Manufacturing Industries Social Science English Medium Class 10 CBSE

Key Points: Classification of Industries

On the basis of raw materials, industries are classified as agro-based, mineral-based, forest-based and animal-based industries.
On the basis of nature of products, industries are divided into heavy industries (capital and bulky goods) and light industries (consumer goods).
On the basis of investment and turnover, industries are classified as micro, small, medium and large-scale industries.
On the basis of ownership, industries are public sector, private sector, joint sector and co-operative sector industries.
On the basis of function and market, industries include basic industries, consumer industries, ancillary industries and service (tertiary) industries.

Key Points: Cement Industry

The cement industry is essential for the construction of houses, roads, bridges, dams, and factories.
It uses bulky raw materials like limestone, silica, and gypsum.
Coal, electricity, and rail transport are important for cement production.
Cement plants in Gujarat are well located for export to Gulf countries.
The first cement plant in India was set up in Chennai in 1904, and the industry expanded after Independence.

Key Points: Chemical Industries

Key Points: Concept of Manufacturing

Manufacturing means producing goods in large quantities by processing raw materials into finished products.
Manufacturing industries belong to the secondary sector and employ people in factories like the steel, textile, and automobile industries.
The economic strength of a country is measured by the development of its manufacturing sector.
Manufacturing reduces unemployment and poverty, modernises agriculture, and helps reduce regional inequalities.
Export of manufactured goods earns foreign exchange, and global competition requires industries to be efficient and high in quality.

Key Points: Control of Environmental Degradation

Industrial wastewater should be reused, recycled, and treated before discharge.
Effluents are treated by primary, secondary, and tertiary methods.
Groundwater overuse by industries must be legally controlled.
Air and noise pollution can be reduced using cleaner fuels, filters, and silencers.
NTPC follows ISO 14001 to reduce waste, manage ash, and protect the environment.

Key Points: Industrial Pollution and Environmental Degradation

Industries cause air, water, land, and noise pollution.
Air pollution comes from harmful gases and smoke from factories and power plants.
Water pollution is caused by industrial chemicals and wastes released into rivers.
Land pollution happens due to the dumping of industrial waste, which also contaminates groundwater.
Noise pollution from machines and construction affects human health.

Key Points: Fertilizer Industry

The fertilizer industry produces nitrogenous (urea), phosphatic, and complex fertilizers (NPK).
Potash (K) is completely imported as India has no usable reserves.
The industry expanded rapidly after the Green Revolution.
Gujarat, Tamil Nadu, Uttar Pradesh, Punjab, and Kerala produce about half of India’s fertilizers.
Other producing states include Andhra Pradesh, Maharashtra, Bihar, and West Bengal.

Key Points: Automobile Industry

The automobile industry provides vehicles for the fast transport of goods and passengers.
India manufactures trucks, buses, cars, two-wheelers, three-wheelers, and multi-utility vehicles.
Liberalisation led to new models and increased demand for vehicles.
The industry showed healthy growth, especially in passenger cars and two- and three-wheelers.
Major automobile centres include Delhi, Mumbai, Chennai, Pune, Bengaluru, and Gurugram.

Key Points: Information Technology and Electronics Industry

The electronics industry makes products like computers, mobiles, and telecom equipment.
Bengaluru is the electronics capital of India.
Major centres include Delhi, Mumbai, Chennai, Hyderabad, and Pune.
The industry creates large employment opportunities.
Growth of hardware and software supports India’s IT industry.

Key Points: Mineral-based Industries

Key Points: Agro-based Industries

Agro-based industries depend on farm products like cotton, jute, and sugarcane.
The textile industry is important for jobs, exports, and industrial growth.
The first cotton textile mill was set up in Mumbai in 1854.
Cotton textiles developed in Maharashtra and Gujarat due to raw cotton and ports.
Spinning is centralised, while weaving is decentralised through handlooms and powerlooms.
The jute industry is mainly located in West Bengal along the Hugli River.
India is the second largest producer of sugar, with many mills in Uttar Pradesh and Bihar.