AP Gov/NSL: Describe the factors that make a public opinion poll more credible/reliable. Which would you argue is most important?

Y i was watching bleech earlier and like goku is the best hokage ever

Why are radio observatories located in valleys far away from urban centers? a. to shield them from electromagnetic interference b. to avoid sound pollution c. to avoid disturbing people living in the city d. to shield them from water vapor

During the industrial revolution in europe, were recruited to locate criminals. sheriffs police bobbies thief catchers