Class 8 Social Science Chapter- 4 Mineral And Energy Resources DAV|CBSE Book 2021
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Class 8 Social Science Chapter-4 : Mineral And Energy Resources
This Post Content All The Exercises of Chapter-4 Social Science Of Class 8 .
- A. Tick (✓) the correct option.
- B. Fill in the blanks.
- C. Write a technical term or an appropriate word for each of the following statement.
- D. Answer the following questions in brief.
- E. Answer the following questions.
- Value Based Question
- Map Skill
- Something To Do
Something To Know
A. Tick (√) the correct option.
1. Which one of the following is not a characteristic of rocks?
Ans) These form outermost shell of the earth.
2. Which one of the following is the best quality of coal?
Ans) Anthracite
3. The major oilfields of India are located in which one of the following states of india?
Ans) Assam
4. The metallic minerals used in electrical industry are -
Ans) iron and Copper
5. Petroleum is not extracted from the oilfields of North Sea by
Ans) Sweden
B. Fill in the blanks of Chapter 4 Social Science DAV Book.
1. A mineral is extracted from the region where its concentration is high.
2. Metallic minerals are divided into ferrous and non-ferrous.
3. Aluminium is obtained from bauxite ore.
4. Petroleum, coal, natural gas and hydroelectricity are conventional sources of energy.
5. Haemetite and Magnetite are the major types of iron ore.
C. Write a technical term or an appropriate word for each of the following statement :
1. Energy generated by turbines run by water falling from a height.
Ans) Hydroelectric Power
2. The resultant metal with improved strength which is produced by mixing two or more than two metals.
Ans) Alloy
3. Materials formed inside the earth by the decomposition of dead remains of plants and animals in sedimentary rocks.
Ans) Fossil Fuels
4. Mineral deposits that are formed when a river erodes rock constituents from a primary source and deposits them in the river beds.
Ans) Placer deposits
5. The process of extracting minerals from the earth's crust.
Ans) Mining
1. Energy generated by turbines run by water falling from a height.
Ans) Hydroelectric Power
2. The resultant metal with improved strength which is produced by mixing two or more than two metals.
Ans) Alloy
3. Materials formed inside the earth by the decomposition of dead remains of plants and animals in sedimentary rocks.
Ans) Fossil Fuels
4. Mineral deposits that are formed when a river erodes rock constituents from a primary source and deposits them in the river beds.
Ans) Placer deposits
5. The process of extracting minerals from the earth's crust.
Ans) Mining
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