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NCERT Class VIII Science Solutions: Chapter 5 - Coal and Petroleum Part 7
Question 36:
Complete the crossword Fig with the help of the clues:
Across:
1. Fuels obtained from dead remains of living organisms. (6,5)
2. A process by which the various constituents of petroleum are separated. (8)
3. A porous black substance obtained from coal. (4)
4. Another name for motor fuel. (6)
Down:
5. The substance obtained by Carbonisation. (4)
6. Fuel for heavy motor vehicles. (6)
7. A petroleum product used for road surfacing. (7)
8. Dead remains of sea animals got converted into it. (9)
Answer:
Across:
1. Fuels obtained from dead remains of living organisms β Fossil fuels
2. A process by which the various constituents of petroleum are separated β Refining
3. A porous black substance obtained from coal - Coke
4. Another name for motor fuel - Petrol
Down:
5. The substance obtained by Carbonization β Coal
6. Fuel for heavy motor vehicles - Diesel
7. A petroleum product used for road surfacing - Bitumen
8. Dead remains of sea animals got converted into it - Petroleum