1A group of students visited a textile mill. They observed that the mill primarily used machines powered by electricity to spin yarn from cotton and then weave it into fabric. They also saw separate sections where the fabric was dyed and finished. The supervisor explained that while spinning is centralized, weaving is decentralized, with many weavers working from home using both traditional looms and powerlooms.
(a) Which sector does the textile industry primarily belong to? [1 mark]
(b) Why is weaving described as decentralized in this context? [2 marks]
(c) What raw material is essential for this industry? [1 mark]
(d) The supervisor mentioned that "spinning continues to be centralised... weaving is highly decentralised to provide scope for incorporating traditional skills and designs." How does this decentralization in weaving contribute to employment and cultural preservation? [2 marks]
2Assertion (A): Manufacturing industries are crucial for modernizing agriculture.Reason (R): Industries provide fertilizers, pesticides, and machinery that improve agricultural productivity.(a) If both A and R are true and R is the correct explanation of A.(b) If both A and R are true but R is not the correct explanation of A.(c) If A is true but R is false.(d) If A is false but R is true. 1mark
3Consider the following data about two industries:
| Industry |
Raw Material Input |
Finished Goods Examples |
Primary Function |
| Industry X |
Iron ore, coal, limestone |
Steel sheets, machinery parts, construction materials |
Supplies materials for many other industries |
| Industry Y |
Sugarcane, urea, water |
Sugar, jaggery, khandsari |
Produces goods for direct consumption by individuals |
Based on the data, identify Industry X and Industry Y, and justify your classification. [3 marks]
4During a field trip, students noticed that a large cement factory was located near a limestone quarry. They also observed a significant amount of heavy machinery and conveyor belts moving the raw material. The plant manager explained that the process requires heavy machinery, a constant supply of limestone, and considerable energy.
(a) What type of industry is the cement factory, based on the bulk and weight of its raw materials and finished goods? [1 mark]
(b) Why is the proximity to the limestone quarry an important factor for the location of this industry? [2 marks]
(c) Apart from limestone, what other major inputs are essential for cement production? [1 mark]
(d) The manager mentioned that rail transportation is also crucial. Why is efficient transportation important for this industry? [1 mark]
5Assertion (A): The development of manufacturing industries is essential for reducing unemployment and poverty in a country.Reason (R): Industrial development creates jobs in secondary and tertiary sectors, thereby reducing dependence on agriculture.(a) If both A and R are true and R is the correct explanation of A.(b) If both A and R are true but R is not the correct explanation of A.(c) If A is true but R is false.(d) If A is false but R is true. 1mark
6A newly established automobile manufacturing plant is situated in a region with good road and rail connectivity. The company has decided to set up its assembly units near major consumption centers to reduce the cost of transporting the finished vehicles. The plant sources various components from different suppliers, including specialized electronic parts.
(a) What type of industry is automobile manufacturing based on the nature of its finished goods? [1 mark]
(b) Why is good transport connectivity important for an automobile industry? [2 marks]
(c) The plant uses electronic components. Which other industry, mentioned in your textbook, is closely linked to the production of such components? [1 mark]
(d) Explain the strategic advantage of locating assembly units near consumption centers for this industry. [1 mark]
7Mr. Sharma is concerned about the pollution caused by a nearby chemical factory. He has noticed that the factory discharges treated wastewater into a local river, and sometimes emits a foul smell into the air. He learned that chemical industries use various raw materials to produce a wide range of products.
(a) Name two types of chemicals produced by the chemical industry that are used in agriculture. [1 mark]
(b) What are petrochemicals used for? Name two products derived from them. [2 marks]
(c) Identify two potential sources of air pollution from chemical factories. [1 mark]
(d) Explain one method that can be used to treat wastewater from chemical industries before it is discharged. [1 mark]
8Assertion (A): Jute mills in India are primarily located in West Bengal.Reason (R): West Bengal has a large jute-producing area and is situated along the Hugli river, which provides inexpensive water transport.(a) If both A and R are true and R is the correct explanation of A.(b) If both A and R are true but R is not the correct explanation of A.(c) If A is true but R is false.(d) If A is false but R is true. 1mark
9An article in a newspaper stated: "The growth of the Information Technology and Electronics industry has significantly boosted employment in India, particularly in cities like Bengaluru and Noida." It also mentioned the production of a wide array of products from basic transistors to sophisticated telecommunication equipment.
(a) Which city is referred to as the 'electronic capital of India' in your textbook? [1 mark]
(b) List three products manufactured by the electronics industry. [2 marks]
(c) How has the IT and Electronics industry contributed to employment generation? [1 mark]
(d) What is the key to the success of the IT industry in India? [1 mark]
10The government is planning to set up new industries in a backward tribal area to create employment and reduce regional disparities.
(a) What type of industries would be most suitable for establishing in such an area to achieve this goal, considering the definition of industries based on ownership? [2 marks]
(b) Give an example of a sector that jointly runs by the state and individuals or groups of individuals. [1 mark]
(c) Name one sector where industries are owned and operated by the producers or suppliers of raw materials, pooling resources and sharing profits. [1 mark]
11A student is researching the importance of manufacturing. They find that industries transform raw materials into more valuable finished goods, which in turn strengthens the economy. However, they also read about the negative impacts like air and water pollution.
(a) Define manufacturing. [1 mark]
(b) How does manufacturing contribute to the economic strength of a country? Give two points. [2 marks]
(c) Name two types of pollution caused by industries. [1 mark]
12Assertion (A): The sugar industry is ideally suited to the cooperative sector.Reason (R): The sugar industry is seasonal in nature, and cooperative ownership allows for efficient management of resources and profit sharing among sugarcane farmers.(a) If both A and R are true and R is the correct explanation of A.(b) If both A and R are true but R is not the correct explanation of A.(c) If A is true but R is false.(d) If A is false but R is true. 1mark
13Imagine you are a district collector responsible for industrial development. You have identified that your district has abundant bauxite reserves and a consistent power supply.
(a) Which industry would you prioritize promoting in your district given these resources? [1 mark]
(b) What are the key properties of this industry's product that make it a popular substitute for other metals? [2 marks]
(c) Name two other states in India where this particular industry has a significant presence. [1 mark]
(d) What is the primary raw material used in this industry? [1 mark]
14A company manufactures steel products. They use iron ore, coking coal, and limestone in a specific ratio, along with manganese. The factory is located in the Chhotanagpur plateau region.
(a) Why is the iron and steel industry considered a 'heavy industry'? [2 marks]
(b) Name the approximate ratio of iron ore, coking coal, and limestone required for steel production. [1 mark]
(c) What is the advantage of locating steel plants in the Chhotanagpur plateau region? [1 mark]
(d) Name one other mineral besides iron ore, coal, and limestone that is used in the production of steel. [1 mark]
15Assertion (A): Regular supply of electricity and an assured source of raw material are critical for the location of Aluminium Smelting plants.Reason (R): Aluminium smelting is an energy-intensive process, and the raw material (bauxite) is bulky and needs to be processed economically.(a) If both A and R are true and R is the correct explanation of A.(b) If both A and R are true but R is not the correct explanation of A.(c) If A is true but R is false.(d) If A is false but R is true. 1mark
16Mr. Gupta, a farmer, uses a pump set and fertilizers for his fields. He also uses a tractor for ploughing and a sewing machine at home for tailoring.
(a) Identify two products from the list above that are manufactured by industries which support agriculture. [1 mark]
(b) Identify one product from the list that is manufactured by a consumer industry. [1 mark]
(c) What type of raw material would be used to manufacture fertilizers? Name one such fertilizer. [2 marks]
17A community is concerned about noise pollution from a nearby industrial estate. They have noticed that construction activities, heavy machinery operation, and generators are the main sources of the noise.
(a) List two adverse effects of noise pollution on human health. [2 marks]
(b) Name two sources of industrial noise pollution. [1 mark]
(c) Suggest two measures that can be taken to reduce industrial noise. [2 marks]
18Assertion (A): The two world wars provided a boost to the development of the cotton textile industry in India.Reason (R): During the wars, there was a demand for cloth in the UK, and India, being a British colony, could supply it.(a) If both A and R are true and R is the correct explanation of A.(b) If both A and R are true but R is not the correct explanation of A.(c) If A is true but R is false.(d) If A is false but R is true. 1mark
19A government initiative aims to encourage industries to adopt sustainable practices. One of the focus areas is minimizing water usage by reusing and recycling it in successive stages. Another focus is treating wastewater through primary, secondary, and tertiary methods before discharge.
(a) Why is it important for industries to minimize water usage? [2 marks]
(b) Briefly describe the purpose of the primary treatment of industrial effluents. [1 mark]
(c) What is the goal of tertiary treatment of wastewater? [1 mark]
(d) Besides water treatment, name one other measure industries can take to reduce air pollution. [1 mark]
20A report on the Indian economy highlights that countries which transform their raw materials into a wide variety of finished goods of higher value are prosperous. It suggests that India's prosperity lies in increasing and diversifying its manufacturing industries.
(a) Explain how manufacturing industries contribute to a country's prosperity. [2 marks]
(b) Why is diversification of manufacturing industries important for India? [2 marks]
(c) Give one example of a raw material and its manufactured product that illustrates this value addition. [1 mark]
Answers
1(a) Secondary sector.(b) Decentralization in weaving means it is not confined to large factories but spread out among many individuals, often working from home, which allows for the use of traditional skills and designs.(c) Cotton.(d) This decentralization provides employment opportunities, especially for weavers in their homes, preserving traditional craftsmanship and cultural heritage.
2(a) If both A and R are true and R is the correct explanation of A.
3Industry X is the Iron and Steel Industry (basic industry), and Industry Y is the Sugar Industry (consumer industry). Industry X is classified as basic because its products (like steel) are raw materials for other industries (e.g., machinery, construction). Industry Y is classified as consumer because its products (sugar) are for direct use by consumers.
4(a) Heavy industry.(b) Proximity to the raw material (limestone) reduces transportation costs, which are significant for bulky materials.(c) Coal and electric power are also essential inputs.(d) Efficient transportation is crucial for moving the heavy and bulky raw materials to the plant and distributing the finished cement to markets and construction sites.
5(a) If both A and R are true and R is the correct explanation of A.
6(a) Automobile manufacturing is a light industry (as it produces finished goods for consumers that are not excessively bulky or heavy compared to raw materials like iron ore).(b) Good transport connectivity is important for sourcing raw materials and components from various suppliers and for distributing the finished vehicles to dealerships and customers across the country.(c) The Information Technology and Electronics industry.(d) Locating assembly units near consumption centers reduces the final transportation cost of the finished vehicles to the end-users, making the products more competitive.
7(a) Two agricultural chemicals are fertilizers and pesticides.(b) Petrochemicals are used for manufacturing synthetic fibres, synthetic rubber, plastics, dye-stuffs, drugs, and pharmaceuticals. Two products are plastic containers and synthetic clothing.(c) Two sources of air pollution are the emission of undesirable gases like sulphur dioxide and carbon monoxide, and airborne particulate materials like dust and smoke from chemical processes.(d) Wastewater can be treated using mechanical (screening, sedimentation), biological (decomposition by microorganisms), or chemical processes before discharge.
8(a) If both A and R are true and R is the correct explanation of A.
9(a) Bengaluru.(b) Three products are transistor sets, televisions, and computers.(c) The growth in hardware and software has created numerous jobs in manufacturing, software development, maintenance, and related services.(d) The key to its success is the continuing growth in both hardware and software sectors.
10(a) Joint sector industries or Cooperative sector industries would be suitable. Joint sector industries can be established with government investment and local private participation. Cooperative sector industries, owned by producers or suppliers of raw materials (who might be from the local tribal community), can pool resources and share profits, ensuring local benefit.(b) Oil India Ltd. (OIL) is an example of a joint sector industry.(c) The Cooperative sector.
11(a) Manufacturing is the process of producing goods in large quantities after processing raw materials into more valuable products.(b) Two points:i. It modernizes agriculture and reduces dependence on it.ii. It creates jobs in secondary and tertiary sectors, helping to eradicate unemployment and poverty.(c) Two types of pollution are air pollution and water pollution.
12(a) If both A and R are true and R is the correct explanation of A.
13(a) Aluminium Smelting industry.(b) Aluminium is light, resistant to corrosion, a good conductor of heat, malleable, and becomes strong when mixed with other metals.(c) Two other states are West Bengal and Kerala.(d) Bauxite.
14(a) The iron and steel industry is considered a heavy industry because both its raw materials (iron ore, coal, limestone) and finished goods (steel products) are heavy and bulky, requiring significant transportation.(b) The approximate ratio is 4:2:1 (iron ore : coking coal : limestone).(c) The Chhotanagpur plateau region has advantages such as the proximity of high-grade raw materials, low cost of iron ore, and availability of cheap labour.(d) Manganese.
15(a) If both A and R are true and R is the correct explanation of A.
16(a) Two products supporting agriculture are the pump set and fertilizers.(b) The sewing machine is a product of a consumer industry (producing goods for direct use).(c) Raw material for fertilizers includes natural gas (for nitrogenous fertilizers like urea) or minerals like phosphate and potash. Urea is one such fertilizer.
17(a) Two adverse effects of noise pollution are hearing impairment and increased heart rate and blood pressure.(b) Two sources of industrial noise are construction activities and heavy machinery operation.(c) Two measures to reduce industrial noise are fitting machinery and generators with silencers, and using noise-absorbing material.
18(a) If both A and R are true and R is the correct explanation of A.
19(a) Minimizing water usage is important to conserve freshwater resources, as industrial processes can consume large quantities, and overdrawing groundwater can lead to scarcity and contamination.(b) Primary treatment involves mechanical processes like screening, grinding, flocculation, and sedimentation to remove large solids and suspended particles from wastewater.(c) Tertiary treatment aims to further purify the wastewater using biological, chemical, and physical processes, often including recycling, to make it suitable for reuse or safe discharge.(d) Industries can reduce air pollution by fitting smoke stacks with electrostatic precipitators or fabric filters, or by using oil or gas instead of coal in factories.
20(a) Manufacturing industries contribute to a country's prosperity by transforming raw materials into finished goods of higher value, which increases trade, generates foreign exchange, and strengthens the overall economy.(b) Diversification is important for India to produce a wider range of goods, become more competitive in the global market, cater to different consumer needs, and create more employment opportunities across various sectors.(c) Example: Raw material - Wood; Manufactured product - Paper. This transformation adds significant value.
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