A basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, youngest layer on top of older layer
Hope that helped
Up here topically a majority of our mountains and craters are results of volcanoes and earthquakes that are caused by moving tectonic plates. on the ocean floor the features are caused by the same things. there are under water mountain ranges and craters.
Your answer would be x=16
Answer:
over 4.5billion years ago is the answer
Explanation: