Quickly is the correct answer
Answer: Synthesis is the answer A.Synthesis.
Explanation: synthesizing simply mean combining
Answer: 1 "Heat"
2 "Relieved"
3 "Violent"
4 "Common"
5 "Hate"
6 "Damaging"
7 "Public"
8 "Apart"
9 "Despise"
10 "Lacking"
Explanation: These are some antonyms I could think of. I hope it helps.