Class 8 Geography Chapter 4 Notes PDF on Industries - Download for FREE
FAQs on Industries Class 8 Notes: CBSE Geography Chapter 4
1. What is the basic definition of an 'industry' for a quick revision of Class 8 Geography Chapter 4?
An industry refers to an economic activity focused on the production of goods (like steel manufacturing), extraction of minerals (like coal mining), or the provision of services (like tourism). These activities add value to raw materials, transforming them into more useful products. For more details, you can explore this introduction to industry.
2. How can industries be quickly classified for revision based on raw materials?
For a quick summary, industries are classified based on the raw materials they use:
- Agro-based: Use plant and animal-based products (e.g., cotton textile, sugar industry).
- Mineral-based: Use mineral ores as raw material (e.g., iron and steel industry).
- Marine-based: Use products from the sea or oceans (e.g., fish oil manufacturing).
- Forest-based: Use forest produce as raw material (e.g., paper mills, furniture).
3. What are the key factors affecting the location of industries that I should remember for my exam?
The main factors influencing where an industry is set up include the availability of raw materials, reliable power and water supply, skilled labour, access to capital, proximity to the market, and efficient transport infrastructure. Government incentives can also play a crucial role in attracting industries to certain areas.
4. Can you summarise the concept of an 'industrial system'?
An industrial system consists of three main parts: inputs, processes, and outputs.
- Inputs: These are the raw materials, labour, land, transport, power, and other necessary resources.
- Processes: These are the activities that convert the raw materials into finished products (e.g., melting, refining, weaving).
- Outputs: This is the final product and the income earned from its sale.
5. Why is the iron and steel industry often called the 'backbone' of modern industry?
The iron and steel industry is called the backbone of modern industry because its products are the primary raw material for many other industries. Steel is essential for manufacturing machinery, tools, transport vehicles, buildings, and infrastructure. Therefore, the development of almost all other sectors depends on it, making it a 'feeder industry'.
6. What is the core difference between agro-based and mineral-based industries?
The core difference lies in the source of their raw materials. Agro-based industries depend on agricultural produce like cotton, sugarcane, or jute. In contrast, mineral-based industries use mineral ores extracted from the earth, such as iron ore, bauxite, or limestone, as their primary inputs.
7. How does a cooperative sector industry differ from a joint sector industry?
The main difference is in their ownership and operational structure.
- A cooperative sector industry is owned and operated by the producers or suppliers of raw materials, workers, or both. Profits and losses are shared among the members (e.g., Amul).
- A joint sector industry is owned and operated jointly by the state (government) and private individuals or companies (e.g., Maruti Udyog Ltd.).
8. What is a quick way to differentiate between small-scale and large-scale industries for revision?
The key difference lies in the capital invested, technology used, and volume of production. Small-scale industries, like basket weaving or pottery, use less capital and simpler technology to produce goods on a smaller level. Large-scale industries, such as automobile or steel manufacturing, require huge investments, advanced technology, and produce goods in large quantities.
9. Why did the cotton textile industry initially flourish in Mumbai?
The cotton textile industry rapidly grew in Mumbai due to a combination of favourable factors. The warm, moist climate was ideal for spinning and weaving, the port facilitated the import of machinery, raw cotton was easily available from the hinterland, and a supply of skilled labour was present. These factors created a perfect environment for the industry's early success.
10. How do industries contribute to the economic development of a country?
Industries play a vital role in economic development by converting raw materials into valuable finished goods, a process known as value addition. They create significant employment opportunities, reduce dependency on agriculture, boost national income, and earn foreign exchange through exports, thus strengthening the country's economy.
11. What are the main environmental impacts to revise from the Industries chapter?
For revision, focus on the four main types of pollution caused by industries:
- Air Pollution: Caused by the release of harmful gases and smoke from factories.
- Water Pollution: Occurs when untreated industrial effluents are discharged into rivers and lakes.
- Land Pollution: Results from the dumping of solid industrial waste.
- Noise Pollution: Generated by the operation of heavy machinery in industrial areas.











