Class 4 Social Science Our Industries textbook exercises and additional question and answers from the chapter.
Very Short Answer Type Questions.
Q: List any two factors that are essential for setting up of an industry.
A: Raw materials and machines.
Q: Name two small-scale industries.
A: Electrical goods industry and utensil manufacturing.
Q: Which type of industry include oil refineries?
A: Oil refineries are part of the petrochemical industry.
Q: Name any three cottage industries.
A: Weaving cloth, making baskets, and crafting clay products.
Q: Which states are the manufacturers of aircrafts?
A: States like Karnataka and Telangana are known for aircraft manufacturing.
Short Answer Type Questions.
Q: What is an industry?
A: An industry is an activity concerned with the processing of raw materials and the manufacturing of goods in factories.
Q: What are agro-based industries? Give one example.
A: Agro-based industries are those that derive their raw materials from agriculture. An example is the sugar industry.
Q: What are mineral-based industries? Give one example.
A: Mineral-based industries use minerals as their primary raw materials. An example is the Iron and Steel Industry, which uses iron ore, coal, and limestone.
Long Answer Type Questions:
Q: What is a cottage industry? Name some of the products of a cottage industry.
A: A cottage industry is a small-scale industry, often operated in homes. Products include baskets, cane furniture, handloom-woven cloth, and clay products. Typically, work is done by craftsmen, often within the same family.
Q: Differentiate between large-scale and small-scale industries.
| Large-scale industries:
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Small-scale industries:
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| Require significant infrastructure.
Employ a large number of highly skilled workers. Utilize big machines for mass production. Examples include iron and steel, automobile, and oil refineries.
|
Use small machines and simple tools.
Employ fewer people. Produce goods on a smaller scale. Examples include electrical goods manufacturing, utensil production, and cottage industries.
|
Our Industries Additional Question and Answers
Q: What are the two groups into which objects around us can be classified?
A: Natural resources and human-made objects.
Q: What is the process of transforming raw materials into finished goods called?
A: Manufacturing.
Q: Why are industries important for the economic development of a country?
A: Industries convert raw materials into useful products, contribute to economic development, promote agriculture, and generate foreign currency through exports.
Q: Name some examples of agro-based industries.
A: Cotton textiles, jute, paper, and sugar industries.
Q: What are the essential factors required for setting up an industry?
A: Raw materials, machines, electricity, human labour, money, transport, and a market.
Q: How are industries classified based on raw materials?
A: Agro-based, mineral-based, and forest-based industries.
Q: Give examples of large-scale industries.
A: Iron and steel, cotton textile, automobile, shipbuilding, oil refineries, sugar, and locomotive industries.
Q: What characterizes small-scale industries?
A: They use small machines, simple tools, and employ fewer people.
Q: Provide examples of goods produced in cottage industries.
A: Baskets, cane furniture, handloom-woven cloth, and clay products.
Q: What is the significance of the market in the industrial process?
A: The market serves as a bridge between buyers and sellers, facilitating the sale of finished goods.
Q: How does industrialization in India contribute to economic development?
A: Industrialization in India has led to remarkable developments in computer science, research, and space industries, contributing to overall economic growth.
Q: Why is transport important for industries?
A: Transport helps bring raw materials to factories and delivers finished goods to the market.
Q: What are the main raw materials for the Iron and Steel Industry?
A: Iron ore, coal, and limestone are the primary raw materials for the Iron and Steel Industry.
Q: What distinguishes large-scale industries from small-scale industries?
A: Large-scale industries require significant infrastructure, skilled labor, and operate with big machines to produce goods in large quantities, while small-scale industries use smaller machines and employ fewer people.
Q: How do cottage industries differ from large-scale industries?
A: Cottage industries are small-scale, often home-based, with low investment, simple tools, and local raw materials, whereas large-scale industries operate on a much larger scale with significant infrastructure.
Q: What role does the market play in the industrial process?
A: The market acts as a medium for selling finished goods, connecting producers with buyers and facilitating economic transactions.
Q: How do industries contribute to national income?
A: Industries earn foreign currency through exports, which adds to the national income of a country.
Q: Why are raw materials essential for setting up an industry?
A: Raw materials are inputs used in the production process, influencing the quantity produced and the cost of the final product.
Q: Name some examples of forest-based industries.
A: Timber and paper industries are examples of forest-based industries, obtaining raw materials from forests.
Q: What characterizes the work in cottage industries?
A: In cottage industries, work is typically done by craftsmen, often from the same family, using simple tools and local raw materials.
