This is for my test please help

Which of the following cultures were among the earliest known inhabitants of north america? a) mayab) incac) anasazi d) olmec

The united states economy makes up how much of the worlds economy

Who ever answer first get ! question 1: which term names the outer edge all around a watershed? a. divide b. basin c. boundary d. collection area question 2: which feature does contour line indicate on a topographic map? a. the path of a river through the watershed b.equal elevation c. similar runoff level d. the boundary of an aquifer