Anything which burns in the presence of ______ is known as combustion.(a) water(b) fuel(c) air(d) saltThis question was posed to me in homework.This intriguing question comes from Internal Combustion Engine in division Design of IC Engine Components of Automotive Engine Design

Anything which burns in the presence of ______ is known as combustion.

1.	Anything which burns in the presence of ______ is known as combustion.(a) water(b) fuel(c) air(d) saltThis question was posed to me in homework.This intriguing question comes from Internal Combustion Engine in division Design of IC Engine Components of Automotive Engine Design
Answer» The correct answer is (c) air The BEST explanation: Fuel(solid, liquid or gas) always NEED oxygen to get combusted and the air is the only source for the AVAILABILITY of oxygen. Hence, anything which burns in the presence of air is known as COMBUSTION.

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