Question

Firefighting operations work on the principle of
(a) lowering the ignition temperature of the burning substance
(b) cutting off the air supply to the burning substance
(c) increasing the ignition temperature of the burning substance
(d) both (a) and (b) ​

Answer 1

Answer:

d

Explanation:

both a and b .

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Answer 2

Answer is a and b both

Explanation: i hope you understand