MEDIUM
8th CBSE
IMPORTANT
Earn 100

Draw a flow chart describing the process of formation of fossil fuels?

Important Questions on Combustion and Fossil Fuels

HARD
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 1
Draw a neat and labelled diagram of the candle flame.
HARD
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 4
What is fractional distillation? Explain.
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 5
Name any five air pollutants? Also, mention the harmful effects of each pollutants.
EASY
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 1
During a fire accident, when you are not supported with any fire extinguisher, it is advisable to evacuate the building and close the doors and windows. Why do you think we should close the doors and windows?
HARD
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 2
Suppose that a major fire broke out in fireworks factory and soon it spread to nearby areas where there is filling stations (petrol pump), school building and multistorey hospital. What are the types of fire extinguishers you would expect the fire service personnel to carry along with them. Justify your answer.