Why do you think the egyptians believed in gods and goddesses

They believed in Gods and goddesses so if they needed help in a certain task they would ask the gods or goddesses for help. This isn't Egyptian mythology but it's Greek mythology I hope you get the point if it hadn't been raining or the lake dried out the would pray to posiden for water because he was the god of the seas
Hope this helped

The GREEKS believed in gods and goddesses because they needed someone to call out to in their time of need. They needed someone of a higher power to protect them in their time of need.

The answer is crop yield.