Answer:
I saw this question on my recent test
B. Both were common governments for early river valley civilizations.
This was my answer and Got it right. Hope This helps you! :0) lol
New York City and Chicago because for jobs there are lots of jobs that are available in those cities
The O stars is the most luminous, then B, then A, F, G, K, and M stars are the least luminous_____ there must be a relationship between mass and luminosity.
Answer:
I think it's C, but I'm not a 100% sure,
so if you could.. please correct me if I'm wrong.
Explanation:
Hope you have a good day! :)