Is geothermal energy a natural resource

Distance that the transcontinental railroad covered from omaha to san francisco.

On this map of the united states the letter h indicates high pressure and the letter l indicates low pressure . select the black arrow that accurately shows the direction of the wind.

What empire controlled most of the middle east except for a few years between 1516 and 1917, where was the capital of this empire located and what was the geographic extent of this empire?