Red colour is known as aka in Japanese
The word wealth meant about the lesson he learned.
No, that is not an onomatopoeia. That's more personification. Onomatopoeias are usually the sound the object makes. For example, "buzz!" is an onomatopoeia of a bee or a bug. You could phrase your sentence like this instead: "Crash!! The meteoroids slammed against the earth's surface." In this sentence, "crash!" would be the onomatopoeia.
Birinci paragrafa dayanarak bence Ana fikir antoniella hakkindaki Dunya tarihi hakkuindadir