Answer:
The Economic Community Of West African States (ECOWAS) is a regional group of fifteen countries, founded in 1975.
Answer:
Because scientist have used devices similar to x-rays to see what is in the center of the earth
Explanation:
It's "A" - Galaxies are made up of some stars that have objects orbiting them and some stars that do not. I am 100% sure, I just took the test.