SEBA Class 8 Science Important Chapter 4 Coal and Petroleum Solutions English Medium As Per SEBA New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 8 General Science Additional Solutions and select need one. SCERT Important Solutions For Class 8 General Science Download PDF. Important Notes for Class 8 Science SCERT.
SEBA Class 8 Science Important Chapter 4 Coal and Petroleum
Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 8 Science Additional Question Answer are part of All Subject Solutions. Here we have given SCERT Class 8 General Science Important Notes for All Chapters, You can practice these here.
Coal and Petroleum
Chapter: 4
| PART – I |
| IMPORTANT QUESTION ANSWER |
A. Very Short Answer Questions:
1. What are natural resources?
Ans: Resources obtained from nature are called natural resources.
2. Name two inexhaustible natural resources.
Ans: Sunlight and air.
3. What are fossil fuels?
Ans: Fuels formed from the dead remains of living organisms over millions of years.
4. Name three fossil fuels.
Ans: Coal, petroleum, and natural gas.
5. What is carbonisation?
Ans: The slow conversion of dead vegetation into coal under heat and pressure.
6. Name two uses of coal.
Ans: Used in thermal power plants and as fuel in industries.
7. What is coke?
Ans: A tough, black, porous form of carbon used in metal extraction.
8. What is refining?
Ans: The process of separating petroleum into different useful components.
9. Why is petroleum called ‘black gold’?
Ans: Because of its high commercial value.
10. What is CNG?
Ans: Compressed Natural Gas, a cleaner fuel used in vehicles and homes.
B. Fill in the Blanks:
1. Coal and petroleum are _________ natural resources.
Ans: exhaustible.
2. The slow process of conversion of dead vegetation into coal is called _________.
Ans: carbonisation.
3. _________ is a fossil fuel stored under high pressure as CNG.
Ans: Natural gas.
4. The first oil well in the world was drilled in _________.
Ans: Pennsylvania.
5. Bitumen is used for _________ roads.
Ans: Surfacing.
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