Answer:
The color of the star will tell you the star's surface temperature in the black body radiation scale.
Hydropower, wind power, solar power.
There are 7 characteristics of Egypt.
1.Stable food supply
2.social structure
3.government
4.religion
5.culture
6.written language
7.technology.
d)International Date Line
The international Date Line is a longitude line.
highly educated middle class
