Question

phosphorus : spontaneous combustion :: firecracker:?​

Answer 1

Answer:

Ignition

Explanation:

Ignition of a cracker represents explosion. When a cracker is ignited, large amount of heat, light, gas and sound are released due to a sudden reaction. It represents an explosion. Also, explosion can takes place when pressure is applied on the cracker. Phosphorus burns in air at room temperature. It represents spontaneous combustion. Burning of matchstick and burning of cooking gas represents rapid combustion.

Answer 2

Answer:

phosphorus : spontaneous combustion :: firecracker: explosion combustion