Q36Long answer
Complete the crossword Fig. 5.2 with the help of the clues: Fig. 5.2 C OAL AND PETROLEUM 29 Across 1. Fuels obtained form 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 form 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)
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