They needed to have more resources and gain more land
The correct answer for the question that is being presented above is this one: "C. Jurassic." The Jurassic period marked the completion of Pangaea's breakup and was concluded by a mass extinction event. From Pangaea, it created other continents and islands that caused the extinction of some species.
Answer:
Rocks formed at high temperatures and pressures are more easily weathered than rocks formed at low temperatures and pressures.
Do both of your questions relate to the same thing if so i will be happy to help