Explanation:
✅ Dangerous = having the quality of danger. “-ous” means “full of” or “characterized by.”
❌ “-ness” makes nouns.
❌ “-able” → dangerable isn’t a valid word.
❌ “-er” → makes nouns.

Explanation:
✅ “-ful” = full of → joyful = full of joy.
❌ “-less” = without.
❌ “-ness” = state of being.
❌ “-tion” = action or process.

Explanation:
✅ Creation = noun made with “-ion.”
❌ Createment — not a word.
❌ Creative — adjective, but question asks for correct form (noun).
❌ Creatly — invalid suffix.

Explanation:
✅ “-ly” forms adverbs: quick → quickly.
❌ “-ful,” “-ness,” “-ous” make adjectives or nouns.

Explanation:
✅ Purity is correct — “-ity” makes an abstract noun meaning “state or quality.”
❌ Pureity — spelling error: drop “e.”
❌ Purable — not a valid word.
❌ Pureness — possible but less formal than purity.