A substance which reacts with oxygen giving heat is called a
combustible substance. Which, one of the following is a
combustible substance?
(a) iron nail (c) stone piece
(b) glass (d) wood
NCERT Class VIII
Science - Exemplar Problems
Chapter 6. Combustion and Flame
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(d)wood is the answer.hope it helps.
Answered by
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Answer is (d) wood........................
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