The cause is that the interest in balloons grows so the first effect/cause would be that inventors develp hydrogen balloons, the second effect/cause is a balloon filled with hydrogen is launched, and the final effect is the very first hot air balloon is launched. I am sorry if this was confusing.
Answer: you would just calmly reply yes that may be true but if it is something rude or not polite to say then kindly ask them to please keep that comment to themselves
