PLEASE HELP Which describes the Appalachian Mountains?

A. stretches from northeastern U. S. to Mexico.

B. largest group of fresh water lakes in the world

C. the largest subregion in the eastern United States

D. the oldest, longest chain of mountains in the United States east of the Mississippi River

Aletsch glacier is the largest glacier in switzerland and the largest found in the alps, a mountain range which extends from monaco in the east to slovenia in the west. currently, the aletsch glacier is retreating. under what circumstances would this glacier see growth instead of retreat? a decline in plate tectonics across the mountain range annual snowfall that exceeds yearly losses an increase in ablation in the southern valleys a rise in temperatures to that of a mediterranean climate

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

Answer this asap. why did the americans go to china? a. trading b. exploration c. land d. live stock