I was listening to some old song, "XXXXXX is a place on earth".
I was wondering whether the meaning would change if I replaced "on earth" with "in the world", so I typed these keywords on the Google search:
In the world + meaning
And then Google told me this:
in the world phrase of world
1. used to express astonishment or disbelief in questions.
"why in the world did you not reveal yourself sooner?"
Does this mean that I can not use "in the world" in non-question sentences?
If I write
I believe that there are many nice people in the world.
Is my sentence wrong then, because I use "in the world" this way?
Please help me.