What methods might archaeologists use to determine the geographic extent and nature of an archaeological site? Which of these methods would have worked best at Teotihuacan in advance of the Wal-Mart development?

pleas go answer my queston befor i fial my test

a phrase from a poem by ralph waldo emerson about the battle of lexington and concord. emerson's words read, “here once the embattled farmers stood / and fired the shot heard round the world.”

i think the answer's are a) b) and c)