The appositive is usually a group of words related to a noun, usually a subject, and describes it in more detail.
The appositive here is a river that flows through Egypt.
Another way of easily spotting an appositive is by looking for commas - if it is separated from the rest of the sentence by commas, it is likely to be an appositive.
Time passes quickly.It is a way how things move, it depends if your bored then you feel like time is going to slow and when your having fun it's like wow already!
you would use a comma after.
example:
dear Mrs.Smith,
I was pleased to meet you.
sincerly, NK
To establish a sense of curiosity, to get them to read more