<span>More than half of Africa's source of energy comes from coal. Its coal production and waste led to several environmental problems like wildfire and diseases. In one mine leak incident in Africa, last 1953 brought poison on the water supply killed thousands of marine life.</span>
We can estimate the age of an open cluster of stars by examining (The turnoff point of the cluster)
Answer:
We would need the whole question or page even to solve this, my best shot would be 24 because 15+9= 24. If this is wrong please forgive me.
C) 30 miles is the correct answer
(I’m not sure but I think so)
