<span>The leaf exerts a force on the sidewalk; the sidewalk exerts a force on the leaf.</span>
The answer is surface runoff
A. Natural Selection. This is because the weeds that are not resistant to it die out before they can reproduce, but the resistant ones grow to maturity and then reproduce, passing down the resistance gene. Over time, the resistance gene would become a normal thing in weeds, while the non-resistant gene would not exist anyone, since the gene could not be passed on.
Answer: it is made up of glucose and fructose
Explanation:
