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1
Answer:
d
Explanation:
Firecrackers are generally made of cardboard or plastic, with flash powder, cordite, smokeless powder, or black powder as the propellant. This is not always the case, however. Anything from match heads to kerosene and lighter fluid has been used successfully in making firecrackers.
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3
Answer:
(d) none of the above
is the right answer. OK?
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