Answer:
A. two shark populations utilize the same fish population as their main food source
I'm guessing this is from Marine Biology. I know this is an example of competition because two different groups of sharks are eating food from the same source. If one group gets to it first every time, they could leave the other group with no food. So it is a competition.
The man whose ideas most closely resemble the sentence would be Lyell - geological processes would take millions of years.
The reason is that neither of the other people in this case - Malthus, Lamarck or Hutton would be heard saying any of the mentioned things and only Lyell would be the man whose ideas were here the ones who are also true.
This is true because if they didn't they wouldn't have the same biological mother.
Answer:
A. It's a reliable source because it's from the government, not a website based on other people's opinions.
Eons: Hadean, Archean, Proterozoic