How hot is the halo of hot gas surrounding
the sun?

2.5 million kelvins

Explanation:

The data revealed X-rays from these distant sources are absorbed selectively by oxygen ions in the vicinity of the galaxy. The scientists determined the temperature of the absorbing halo is between 1 million and 2.5 million kelvins, or a few hundred times hotter than the surface of the sun.

your answer will be b. improving roads, bridges, and other infrastructure. hope i !

hello! : )

i think a judge or jury, as they preside over the court and is the central figure in a trial.

hope this and i hope i answered in time!

good luck!

~ destiny ^_^