MEDIUM
8th CBSE
IMPORTANT
Earn 100

State the two uses of asphalt.

Important Questions on Sources of Energy

EASY
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 6 - Sources of Energy>Something To Know>Q 5
State two uses of paraffin wax.
MEDIUM
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 6 - Sources of Energy>Something To Know>Q 6

Write the full forms of CNG, LPG and PNG.

MEDIUM
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 6 - Sources of Energy>Something To Know>Q 1
Describe in brief the process of coal formation.
MEDIUM
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 6 - Sources of Energy>Something To Know>Q 2
Differentiate between lignite and bituminous coal.
MEDIUM
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 6 - Sources of Energy>Something To Know>Q 3
How do petroleum and natural gas occur in nature?
MEDIUM
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 6 - Sources of Energy>Something To Know>Q 4
State the main advantages of using natural gas.
MEDIUM
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 6 - Sources of Energy>Something To Know>Q 5

Keeping in mind their availability in nature, explain the need of using coal and petroleum judiciously.