How were mountains, plateaus and valleys formed?

Thanks for the ask. Mountains can form by volcanic activity, but most often result from collisions within the Earth's crust. Regions can be uplifted and crumpled when tectonic plates collide- the classic example is the Himalayas where the Indian and Eurasian plates are colliding. read more

Mountains tend to see a lot of snow and rain and thus are worn down quickly, with rivers carving valleys. The low areas with rivers are thus your valleys, the higher uneroded peaks, your mountains. Plateaus are high places, usually uplifted (but not always), that are flat. read more

Plateau Mountains are formed by Erosion. These are large areas of high levels of flat land, over 600 meters above sea level formed due to earth’s internal activity. Over billions of years, the rivers can cut deep into a plateau and make tall mountains. read more

The Colorado plateau in the United States is an example of a plateau formed by volcanic activity. These plateaus show a great abundance of volcanic rocks and other telltale signs. The other two types only have the marks of the terrain before they were uplifted. read more