NCERT Solutions for Class 10 Geography Chapter 6 Manufacturing Industries

NCERT Solutions for Class 10 Geography Chapter 6 Manufacturing Industries

Chapter 6 Manufacturing Industries NCERT Solutions for Class 10 Geography is very helpful in knowing important points given in the chapter. You will get to know about a lot of new things like importance of manufacturing and types of industries such as ago-based industries, mineral-based industries etc. Class 10 Social Science NCERT Solutions can be used to complete notebook.

NCERT Solutions for Class 10 Geography Chapter 6 Manufacturing Industries

1. Multiple choice questions.

(i) Which one of the following industries uses limestone as a raw material.
(a) Aluminium
(b) Cement
(c) Plastic
(d) Automobile
Sol. (b) Cement

(ii) Which one of the following agencies markets steel for the public sector plants?
(a) HAIL
(b) SAIL
(c) TATA Steel
(d) MNCC
Sol. (b) SAIL

(iii) Which one of the following industries uses bauxite as a raw material?
(a) Aluminium Smelting
(b) Cement
(c) Paper
(d) Steel
Sol. (a) Aluminium Smelting

(iv) Which one of the following industries manufactures telephones, computer, etc.
(a) Steel
(b) Electronic
(c) Aluminium Smelting
(d) Information Technology
Sol. (b) Electronic

2. Answer the following briefly in not more than 30 words.

(i) What is manufacturing?

Solution

Production of goods in large quantities after processing from raw materials to more valuable products is called manufacturing.

(ii) Name any three physical factors for the location of the industry.

Solution

• Availability of raw material.
• Suitable climate.
• Availability of water and power supply.

(iii) Name any three human factors for the location of an industry.

Solution

• Availability of cheap labour.
• Availability of services such as banking.
• Availability of Market.

(iv) What are basic industries? Give an example.

Solution

Basic industries are those industries which supply their products or raw materials to manufacture other goods for example, iron and steel and copper smelting, aluminum smelting industries.

(v) Name the important raw materials used in the manufacturing of cement?

Solution

The important raw materials used in the manufacturing of cement are limestone, silica, alumina and gypsum.

3. Write the answers of the following questions in 120 words.

(i) How are integrated steel plants different from mini steel plants? What problems does the industry face? What recent developments have led to a rise in the production capacity?

Solution

Integrated steel plants Mini steel plants
(a) An integrated steel plant is a large unit. (a) Mini steel plants are smaller units.
(b) It handles everything in one complex (b) These have electric furnaces.
(c) These collect raw materials to make steel, by rolling and shaping. (c) These use steel scrap and sponge iron and have re-rollers that use steel ingots as well.

Problems faced by the industries:
• High costs and limited availability of coking coal.
• Lower productivity of labour.
• Irregular supply of energy.
• Poor infrastructure.

Liberalisation and Foreign Direct Investment have led to a rise in the production capacity of steel industry. Private ownership have given a boost to the industry. However, there is a need to allocate resources for research and development to produce steel more competitively.

(ii) How do industries pollute the environment?

Solution

Environmental pollution is becoming a serious problem for humans as they pollute environment many ways:
• Air pollution is caused by sulphur dioxide and carbon monoxide. Smoke is emitted by chemical and paper factories, brick kilns and burning of fossil fuels in big and small factories. Bhopal Gas Tragedy is an example.
• The industrial effluents are dumped into rivers and pollute the water. The major industries responsible for this are paper, pulp, chemical, textile, dyeing and petroleum refineries and tanneries.
• Thermal pollution of water occurs when hot water from factories and thermal plants is drained into the rivers and ponds before cooling.
• Industrial and construction activities, machinery, factory equipments make a lot of noise which cause hearing impairment, increased heart rate and blood pressure in humans.

(iii) Discuss the steps to be taken to minimise environmental degradation by industry?

Solution

Steps to minimise environmental degradation:
• Treatment of industrial effluents can be done in three phases i.e., primary, secondary and tertiary.
• Harvesting of rainwater to meet water requirements.
• The use of water for processing should be minimised by reuse and recycling.
• To minimise air pollution, smokestacks should be fitted to factories with with electrostatic precipitators, fabric filters, scrubbers and inertial separators.
• Machinery and equipment can be used and generators should be fitted with silencers.
• Smoke can be reduced by using oil or gas instead of coal in factories.

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