<span> A homogeneous mixture is composed of a single visible phase while a heterogeneous mixture has two or more</span>
B. A solar cycle usually lasts 11 years.
Both the force of the earth’s gravity on the ball and the force the ball got from being rolled off
If he was the primary scientist doing it as he did alot of the heavy lifting then yes its ok, but i also think how the others should also me at least mentioned. Or they could just not name the experiment by a person just so its not too biased