Which two details support the central idea that Harun al-Rashid was a strong ruler who expanded his territory? "…his empire extended from modern Morocco to India." "…al-Rashid was the second son of his father, al-Mahdi, an important political leader." "[Harun al-Rashid] held power for more than two decades, from 786 to 809 CE." "Harun al-Rashid's reign included a number of military campaigns."

Why does the author's description of the mercury boiler—"the mercury, when vaporized, going into a mercury turbine and then into a condenser, remaining hot enough to generate steam in a steam boiler"—intentionally incorporate such highly technical language? using technical language establishes the expertise of the writer and convey the complex nature of the process being described. using technical language allows the writer to subtly poke fun at those who seek to make basic processes seem overly complicated. using technical language encourages readers to develop deeper and more meaningful personal connections to the information. using technical language lets the writer make clear to readers that the article is intended for readers who are themselves experts on electricity.