If the population of prey species decreases then the competition between the predator population will increase and natural selection will act on them. So nature will select those individuals among predators who are more fit and adapted and less fit individuals will die.
So a few year after the predator population will decrease as there are not enough prey to support the large population of predators which was present when prey were abundant. Therefore the correct answer is D.
No they are not the same because the velocity of a compound reacts differently to an element causing an up stir. The correct statement is The properties of a compound have a higher rate of joules causing a difference between elements
