Which of the following is a supporter of combustion?
-
Carbon dioxide
-
Oxygen
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Water vapours
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Sand
B
Correct answer
Explanation
A supporter of combustion is a substance that enables or supports burning. Oxygen is essential for combustion as it reacts with fuel during the burning process. Carbon dioxide (CO2) is actually used to extinguish fires by displacing oxygen. Water vapor and sand do not support combustion.