6. According to Islamic faith, what did the angel Gabriel do to bring water up out of the ground in the desert?

if you are talking about ZamZam water, Gabriel doesn't do anything look at the explanation to see how did they get the water

Explanation:

The story of the well dates back to Prophet Abraham and his son Ishmael, who was crying out of thirst. ... Hajar ran seven times back and forth between the hills of Safa and Marwah looking for a drop of water for her son. That's when Ishmael started scraping the land with his feet and suddenly the water sprang out.

they were citizens but they could not vote and they did could not get involved into a political situation during that time.