Q.

 Which statement best explains the spontaneous combustion?

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a

It is the ability of materials to burn with the help of some source of heat like flame or spark.

b

It is the ability of certain materials to start burning without any flame, spark, heat, or ignition source.

c

 It is the ability of certain materials to remain unburnt.

d

It is the ability of certain materials to burn without oxygen.

answer is B.

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Detailed Solution

The statement that best explains spontaneous combustion is - It is the ability of certain materials to start burning without any flame, spark, heat, or ignition source.

A type of combustion in which the substance suddenly catches fire without the supply of heat or friction externally is called spontaneous combustion; e.g., forest fires.

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 Which statement best explains the spontaneous combustion?