Its source is in the Guinea Highlands in southeastern Guinea. It runs in a crescent through Mali, Niger, on the border with Benin and then through Nigeria, discharging through a massive delta, known as the Niger Delta or the Oil Rivers, into the Gulf of Guinea in the Atlantic Ocean.
At the end of a sentence the modifier do not not require anycommas because modifiers can only be used at the beginning or middle not in the ebd of a sentence
