A speices usaully can only breed with the same species unless it is done in a lab with their DNA and sometimes that doesnt work
D. an ap course because i herd that that took longer than the other ones
<span>The correct answer is A. younger than. This is all just fancy ways of saying that if you cut open a mountain and look at the rocks, the ones on the top will be younger than the ones on the bottom. That is because of the ways that the rocks formed and the way things were deposited.</span>
