Question

7. Give reasons for the following.
(a) Some combustible substances do not burn at room temperature.​

Answer 1

Answer:

Different combustible substances catch fire at different temperatures. A combustible substance cannot catch fire or burn if its temperature is lower than its ignition temperature.

Explanation:

Answer 2

Answer:

Different combustible substances catch fire at different temperatures. A combustible substance cannot catch fire or burn if its temperature is lower than its ignition temperature.

Explanation:

please mark me as brainliest