In the image shown here of the Appalacian Highlands along the East Coast in Canada, what has "flattened" this mountain chain? Appalachian Highlands View. jpeg

Group of answer choices

A. Mining

B. Weathering

C. Winds

D. Erosion

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.