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प्रश्न
Identify the correct group
Secondary activities of man:
विकल्प
Hunting – fishery – lumbering – animal husbandry
Based on agriculture – heavy industries – micro, small and medium industries – cottage industries
Trade – transportation – communication – other services
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उत्तर
Based on agriculture – heavy industries – micro, small and medium industries – cottage industries
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संबंधित प्रश्न
Give geographical reasons:
Iron and steel industries are found in mineral rich area of Dhanbad.
Give geographical reasons:
Fruit-processing industries are found in Ratnagiri and Sindhudurg districts of Konkan region.
Give geographical reasons:
What factors are responsible for non-development of industries in Central Australia?
Explain the factors affecting the location of sugar industries.
The products obtained from the primary economic activities are used as raw material in ______ economic activities.
Assertion: The humid climate of Mumbai offered great scope for the development of cotton textile industries.
Reason: Industries require ample amount of water.
Identify the correct group
Factors affecting on the location of industries:
State whether right or wrong:
Industries are less developed on the eastern coast of U.S.A.
Read the following passage and answer the question given below
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Coal is a black or gray rock by colour. Coal is made of carbon. Coal formation is due to the fact that plant remains have been buried underground millions of years ago. Coal production has been extensive in the Carboniferous era. This period is 300 million years old. According to geologists, in the Carboniferous era, coal was produced in wetlands where temperate forest growth occurs. Remains of dead plants such as bunds and branches are stored in the wetlands and over time due to the accumulation of silt and mud on them, the plant does not rot completely due to the weight of the silt. Plant remains are suppressed by pressure from the sediment, as well as by the movements of the earth's crust, and sometimes by the heat of the volcano. This causes chemical and physical changes in the buried plant layer, which is initially converted to peat (crude coal) and then to other types of coal. There are many types of coal, depending on the composition of the coal and the amount of carbon. There are four types of coal based on the amount of carbon in the coal: Anthracite, bituminous, lignite, peat etc. Coal is used as a fuel in thermal power generation. In many parts of the world, coal is used to generate water vapour over heat. Coal is also used as a fuel in steam engines of ships and trains. After power generation, coal is mostly used in the steel industry. Coal is used as fuel in the cement industry. Many types of chemicals are produced from the coal component. E.g. Asphalt, fennel, benzole, plastics, dyes, disinfectants, fertilizers, etc. The gas produced from coal is used to make bio-chemicals. Even today, coal is used as a fuel for cooking and keeping the house warm. |
- How coal is produced?
- In which era was coal produced?
- Explain from which component the types of coal occur?
- What coal is used for?
Draw a diagram and label it.
Provision of infrastructure and stimulus
