4.1)which are the youngest fossils and in what type do they occur?(2 points)

4.2)were the youngest sediments mentioned in question 4.1
deposited in the sea or in land?
explain your answer.(3 points)

4.3)which is the oldest fossil and in what rock type do they occur?(2 points)

4.4)sections a, b and c are different. explain why and how the layers
have changed from one cliff face to the next. (5 points)