The class was repentantly quiet for a while and the teacher was alarmed. Suddenly, a student, John indicated by raising his hands up.
Teacher: That’s very good of you. Let me hear you…
John: I know of Oxygen gas, ma.
What do you mean?
After John, other student began to gain understand like from his response.
Teacher: Can someone else attempt that question? Chris:- Nitrogen gas
Chris: I ma, Nitrogen gas
Peter:- Hydrogen gas
Idris:- Tear gas!
Teacher (angry): You all have just one chance left before I get angry with you all.
The classroom was quiet for a while before David answered…
Teacher angrily worked out