HARD
8th CBSE
IMPORTANT
Earn 100

What do you mean by fuel efficiency? What role does it play in the selection of the fuel?

Important Questions on Combustion and Flame

MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q E
How acid rain is caused? Explain briefly.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q F
Charcoal or coal burns with a glow not a flame. Why?
MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q F
How does wick of a candle helps flame to burn? What are the constituents of a wick?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q F
Spilling of crude oil is a severe threat to our sea and oceans. Explain.