여 or 요

In my last note, I seems to have the same mistakes of the usage of 요 and 여 (ㅛ and ㅕ)
What is the difference between those two?? They both read as 'o' right??
Can someone kindly explain it to me...

I wrote about the Hangul and their sounds in my note.

I think it is helpful for you.

ㅕ and ㅛ sounds are different like as ㅓ and ㅗ.

In sound symbol, ㅓ is matched to [∧] and ㅗ is matched to [o].

And ㅛ is the sound like ㅗ[o] added "y".

Like this, ㅕis the sound of "y" + "ㅓ".

"~요." is generally used to the end of sentences. ex) 안녕하세요

"~여" is normaly used in the sentences that mean the reason and the result.

ex) 빗물이 모여 강이 된다. (This is just a example.)