The Present Simple is used:
To describe permanent situations.
Tina lives in London
To describe repeated/habitual actions.
He wakes up at 7:30 every morning
To talk about general truths.
Water boils 100°C
To refer to the plot of a book, film, etc.
Harry Potter lives with his uncle Vernon
In sport commentaries.
Jefferson shoots and he scores!
In exclamatory sentences with "Here" and "There".
He comes Uncle Harry!