Natural selection doesn't favor traits that are somehow inherently superior. Instead, it favors traits that are beneficial (that is, help an organism survive and reproduce more effectively than its peers) in a specific environment. Traits that are helpful in one environment might actually be harmful in another.
(one again, I hope this helps ^^)
Answer: black (graphite), transparent (diamond)
Explanation:
I got C. it is a homogenous mixture and particles settle down if left undisturbed.
