What is the fine-grained topic of the following text: [v] increase rapidly and in an uncontrolled manner; "The population of India is exploding"
[v] burst outward, usually with noise; "The champagne bottle exploded"
[v] be unleashed; burst forth with violence or noise, as of an emotion or an expression of emotion; "His anger exploded"
[v] show a violent emotional reaction; "The boss exploded when he heard of the resignation of the secretary"
[v] "I could hear rifles explode"
[v] destroy by exploding; "The enemy exploded the bridge"
EXPLODE is a 7 letter word that starts with E.
boiler from too great pressure of steam. Only return the topic.
The concept of "Exploding"