Answer:
Scientists have studied eclipses since ancient times. Aristotle observed that the Earth's shadow has a circular shape as it moves across the moon. He posited that this must mean the Earth was round. Another Greek astronomer named Aristarchus used a lunar eclipse to estimate the distance of the Moon and Sun from Earth
Answer:
She was a success.
i don't think commas are necessary because it's not a compound or complicated sentence.
F(net) = Fgrav -Fair
= 600 -400
=200N
then net force is equal to 200N..
Answer:
because if someone close to u gets sick you would know how to cure it
