Https://www.khanacademy.org/humanities/world-history/medieval-times/spread-of-islam/a/the-rise-of-is... this link should help you
The answer is
- <u><em>geothermal</em></u>
- <u><em>hydroelectric</em></u>
<em>Hope this helps!!!</em>
He established a responsible government. He got rid of corrupt and no good administrators. He also changed the system of provincial administration so that all provincial governors were answerable to him!
I hope this helps !
