Natural selection allows nature to chose which species survives. Only the fittest get to pass on their genes. And by fittest i mean the ones that are better adapted to the environment.<span />
D. Lava plateau
They are formed when lava flows from the volcano & build up over time as the molten lava is deposited & cools.
It depends on the life stage that the star is in. Currently, in the mid-life stage, the sun is still fusing hydrogen into helium, so the maximum here is helium; however, far in the future when the star is nearing its final days, it can fuse atoms into elements as heavy as iron and nickel.
Answer: I believe the answer is D because I know that you can't kill a eagle in the U.S. because it is a protected species.