The sentence that best summarizes the passage is B) Two French brothers built the first hot air balloon from paper, warming the air inside with smoke so it would rise.
A- alliteration
repetition of same first letter in a sentence
The third sentence. An abstract noun is a noun you can’t physically see or touch (examples of this are usually emotions like love, hate, excitement, etc). In the third sentence, opinion is a noun. You cannot see or touch an opinion.
