what is an important idea that geologists use to put sedimentary rocks in order from older to younger? group of answer choices in a normal pile of sedimentary layers, the ages do not show any regular progression from oldest to youngest or youngest to oldest going up through the pile, but instead are randomly distributed. in a normal pile of sedimentary layers, the layer on the top was deposited first, then the one beneath it, and so on, with the most recently deposited layer on the bottom. in a normal pile of sedimentary layers, the layer on the bottom is the oldest, and the layer on the top is the youngest. in a normal pile of sedimentary layers, the layer on the top and the layer on the bottom are the two oldest layers, and the layer in the middle is the youngest.