The sides of a river gorge have layers of earth like those shown in the diagram.

It is most likely these layers were formed by earthquakes and heavy rainwater erosion and siltingvolcanoes and foldingprolonged droughts and high windsglaciers and weatheringearthquakes and heavy rainwater erosion and siltingvolcanoes and foldingprolonged droughts and high windsglaciers and weathering

What is the oldest layer of rock? limestonesandstonemudstonelimestonesandstonemudstone

 

A scientist said that the gravel had been deposited after the folding occurred. What evidence supports this statement?

Tim and Susan live on a hilly farm 20 km from the coast. 

Tim said, "Tens of thousands of years ago the farm would have been on the side of a volcano." 

Susan said, "No. It would have been under the sea then." This is a diagram of the rock layers underneath their house:

 

 

Who was right? TimSusanTimSusan