Question

Present simple vs past simple explicacion

Answer 1

we use the simple present to talk about habits and routines, also general facts and repeated actions.

The "simple past" is used to talk about an action that ended in a time before the current one. The duration is not relevant. The time in which the action is located may be the recent past or a distant past.
To difernecia of the simple present the action that expresses already concluded reason why the verb has to conjugate