Washing dc lies between maryland and virginia, in which region does the nations capital belong

From the standpoint of geography,a is an internal rendering of an individual's known world

You have been tasked with sorting the rock samples shown into three categories, with two rocks in each category. what attribute would you use to sort these rocks? which rocks would be in each category? rocks: obsidian, coquina limestone, granite, soapstone,pumice, and gneiss.

Find the area of the shaded region.