Help pl! Im timed How did ancient Indians measure length?

A. by using precise rulers

B. by stacking square bricks

C. by using the binary system

D. by observing and estimating

Fulton county would be most likely to have its economy positively influenced bya) an international airport. b) the port of brunswick. c) the port of savannah. d) a subway system

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk

What are the most populous and least areas of russia and why are some areas more heavily populated than others