- I feel confident saying that Niagara falls is one of most beautiful places on the planet.
- I feel confident saying that Niagara falls is one of most beautiful places on the earth.
- I feel confident saying that Niagara falls is one of most beautiful places on earth.
I'm not sure that the second or third sentence is correct.
When we speak of our planetary home (Earth), we usually capitalize it. Otherwise, your sentences are fine. "
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
When we speak of our planetary home (Earth), we usually capitalize it.
Otherwise, your sentences are fine. I would say "I feel confident in saying..."
I would capitalise the f: Niagara Falls, and add an article: one of the most beautiful places.
CB