Ineed with 8 and 9 a and b now and u

a) which layers is the oldest layer
b) describe the age of the igneous intrution that is labeled g related to the other rocks layers and explain how it's age related to the other layers

Which question could be best answered using the process of scientific inquiry? do different plates have different rock compositions? why did it take so long to develop the theory of plate tectonics? what are different cultural myths caused by plate tectonics? do plates move intentionally to cause volcanic eruptions?