Select the options that are needed for a matchstick to burn.
Options:
A .  
Friction
B .  
Chemical
C .  
Wood
D .  
Oxygen
Answer: Option A : A, B, C, and D The three essential things that are required for a substance to burn are heat, fuel and oxygen. Here the heat is produced by friction between matchstick and box. Fuel is the chemical at the strip of matchstick and wood. Oxygen is available in the atmosphere.
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