the stratigraphy in the valley and ridge province is much thicker in the east than in the west. this tells us that the mountainous areas from which the sediment was derived existed in which direction?



Answer :

During the Carboniferous, Permian, and Triassic periods, the central portion of the supercontinent Pangaea was home to the Central Pangean Mountains, a vast mountain range with a northeast–southwest trend.

When did plant life first appear on Earth's surface?

During the Ordovician period, when life was rapidly diversifying, the first land plants appeared around 470 million years ago. Like liverworts and mosses, they were non-vascular plants with shallow roots.

A line of mountains or hills connected by high ground is called a mountain range or hill range.A group of mountain ranges that have emerged from the same cause, typically an orogeny, is known as a mountain system or mountain belt. These ranges share similarities in form, structure, and alignment.

Learn more about mountains here:

https://brainly.com/question/101267

#SPJ4