I believe the first one is 'physical geography' :-)
As stars get older they get cooler and you know when you light a flame the part at the bottom is hotter so its also applies to stars, the star is very hot because it is newer and has more gas so it appears blue to us
Answer:
Magnitude
Explanation:
Earthquakes are typically measured in units of magnitude. The news usually use the most popular measurement scale called the Richter Scale which rates an earthquake by the size of its seismic waves on a scale from 1 to 10.
Ex. Mexico had a 7.1 magnitude earthquake
Hope this helps :)
if it did please mark brainliest :D
- A. Hazle <3
Tôn giáo phong tục xuất sứ vủng ngoại ô quanh nó
3 1/3 is the answer (you divide to find the answer)