Why does the sun rise and set

The sun rises and sets because of it's rotation on it's axis.

Explanation:

The sun makes a complete rotation after 24 hrs, as the earth rotates the sun moves past that part of the Earth not lighting it up anymore causing night time. So as the Earth moves towards the east the sun sets in the west causing it move out of our line of site

answer they showed that organic molecules such as amino acids could be produced from inoragnic molecules;