NCERT Solutions for Class 8 Social Science Geography Chapter 5 Industries
These Solutions are part of NCERT Solutions for Class 8 Social Science. Here we have given. NCERT Solutions for Class 8 Social Science Geography Chapter 5 Industries
1. Answer the following questions.
What is meant by the term ‘industry’?
Meaning of Industry:
Industry means an economic activity that is related to production of goods, extraction of minerals and the provision of services.
Which are the main factors which influence the location of an industry?
Main factors which influence the location of an industry.
Which industry is often referred to as the backbone of modern industry and why?
Ships, trains, trucks, and automobiles are made largely of steel. From safety pins to big ships are made from steel.
- Oil wells are drilled with steel machinery.
- Steel pipelines transport oil.
- Minerals are mined with steel equipment.
- Farm machines are mostly made of steel.
- Large buildings have steel framework.
Why cotton textile industry rapidly expanded in Mumbai?
Cotton textile industry rapidly expanded in Mumbai because of the following reasons:
- First mill established in Mumbai in 1854.
- Warm and moist climate.
- Port facility for importing machinery.
- Availability of raw materials.
- Availability of skilled labour.
What are the similarities between information technology industry in Bangalore and California?
Similarities between information technology industry in Bangalore and Silicon Valley in California:
- Bangalore is located on Deccan Plateau, Silicon Valley (Santa Clara Valley) next to the rocky mountains.
- Both have clean environment.
- Mild climate throughout the year (pleasant climate).
- Close to educational, scientific and technological centers.
- Close to major roads and airports.
- Good access to markets.
- Skilled workforce.
- Low rents and low cost of living.
Tick the correct answer.
1. Silicon Valley is located in
2. Which one of the following industries is known as sunrise industry?
(a) Iron and steel industry
(b) Cotton textile
(c) Information technology.
(3) Which one of the following is a natural fibre?
Distinguish between the followings.
(1) Agro-based and mineral-based industry
(2) Public sector and joint sector industry.
(1) Distinction between Agro-based and Mineral-based Industry
|Agro-hased Industries||Mineral-based Industries|
|1. The industries which obtain raw materials from agriculture are called agro-based industries.
2. These industries provide employment in rural areas.
3. Agro-based industries are mostly in private or co-operative sectors.
4. Examples: Jute, sugar, cotton textile, vegetable oil and plantation.
|1. Industries based on minerals for their raw materials are termed as mineral-based industries.
2. They provide employment both to rural and urban labour.
3. These industries are generally located in public sector due to huge investments involved.
4. Examples: Iron and steel industry, machine tools industry.
(2) Distinction between Public Sector and Joint Sector Industry
|Public Sector Industry||Joint Sector Industry|
1. The industry which is owned and controlled by State Govt, or the Central Govt, is called Public Sector Industry.
2 Examples: Indian Railways, Steel plants at Durgapur, Bhilai, HMT, Heavy Electrical, etc.
1. The industry which is owned and controlled by government and individuals are called joint sector industries.
2. Examples: Cement industries, paper industries, information technology, MUL (Maruti Udyog Limited).
Give two examples of the following in the space provided.
(1) Raw Materials: Iron ore and limestone.
(2) End product: Iron and steel.
(3) Tertiary Activities: Transport and banking.
(4) Agro-based Industries: Sugar and vegetable oil.
(5) Cottage Industries: Basket making and weaving.
(6) Co-operatives: Sugar and Amul milk union.
How to identify a location for establishing an industry—
Divide your class into groups. Each group is a Board of Directors faced with the problem of choosing suitable site for an iron and steel plant of Developen Dweep. A team of technical experts have submitted a report with notes and a map. The team considered access to iron ore, coal, water and limestone, as well as the main market, sources of labour and port facilities. The team has suggested two sites, X and Y. The Board of Directors have to take the final decision of where to locate the steel plant.
- Read the report submitted by the team.
- Study the map to find out the distances of the resources from each site.
- Give each resource a ‘weight’ from 1 to 10, according to its importance. The greater the ‘pull’ of the factor on the industry the higher the weight from 1 to 10.
- Complete the table below.
- The site with the lowest total should be the most satisfactory site.
- Remember each group of directors can decide differently.
- Iron ore: This is a very large deposit of low grade iron ore. Long distance transportation of the ore would be uneconomic.
- Coal: The only coalfield contains rich deposits of high grade coal. Transportation of the coal is by railway, which is relatively cheap.
- Limestone: This is widely available over the island, but the purest deposits are in the Chuna Mountains.
- Water: Both the tributaries of River Neel carry sufficient water to supply a large iron and steel plant in all seasons. The sea water because of its high salt content is unsuitable.
- Market: It is expected that the chief market for the Plant’s products will be the engineering works of Rajdhanipur. Transport costs for the products—mainly smallsteel bars and light steel plates would be relatively low.
- Labour supply: This will have to be recruited mainly from the unskilled workers in
the 3 fishing villages of Hill, Rah and Sing. It is expected that most workers will
commute daily from their present homes.
- Port facilities: These are at present minimal. There is a good, deep natural harbour at port Paschimpur developed to import metal alloys.
|Resource||Distance from X||Distance from Y||Weighting
|Distance V weight for site X||Distance x weight for site Y|
The smaller the pull, the higher the weighting.
Site X is more suitable.
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