Erosion
Bc of water rushing
The principal is Superposition according to science
Humans are the activators, the catalysts, and the dreamers. They preside at the foundation of important industries such as healthcare, education, or energy, to name a few. These large-scale service ecosystems rely on humans who understand how such sectors impact quality of life.
The answer is D. The Palaeozoic era was characterized by the supercontinent of Pannotia which was located at the current position where Chile is, 500 million years ago. There is evidence that shows that central Africa was once at the polar regions due to evidence of glaciers in its geological rocks. Due to tectonic movement, the Appalachians and the Ural Mountains were formed in the resulting Pangea supercontinent.