Answer:
B) The area was easy to attack and invade.
Explanation:
When we want to determine if a country has good natural defenses against invasion we look at the geography. We look for tall mountains or deserts or rivers and swamps or cold winters and so on. They didn't really have such natural barriers against their enemies. They didn't have things to prevent them from trading so A and D is not the answer and they did herd animals.
They're used by humans for fossil fuel and in entertainment. They were not created by the human race, they were created through thousands of being underground and soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.
a.colonist were encouraged to revolt against a failed government