MEDIUM
8th CBSE
IMPORTANT
Earn 100

Write some important uses of the various constituents of petroleum.

Important Questions on Coal and Petroleum

HARD
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 5 - Coal and Petroleum>LONG ANSWER QUESTIONS>Q 34
Coal reserves are said to be enough to last for another hundred years. Do you think we need to worry in such case? Why or why not?
MEDIUM
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 5 - Coal and Petroleum>LONG ANSWER QUESTIONS>Q 35
What steps would you suggest for the judicious use of fossil fuels?
HARD
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 5 - Coal and Petroleum>LONG ANSWER QUESTIONS>Q 36

Complete the crossword Fig. 5.2 with the help of the clues:

Question Image

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)