Answer:
One focal point of the moon's orbit is 50,000 km.
From reasoning and analyzing evidence. Hope this helped :D
Answer: A is the correct answer. Our scientific knowledge has come from all places around the word. From north africa to the middle east, to india and china.
The only reason that we are so far ahead is because we have interacted with other peoples who have skills and knowledge that we didnt have.
Hope this helps.
