Answer:
1. A flagpole uses a pulley to raise a flag far above your head. It also helps to bring the flag back down. Without a pulley, it would make it nearly impossible to raise a flag up a flagpole. A pulley consists of a wheel with a groove around it.
2. A well is simply a vertical hole in the ground that extends past the water table and into the saturated zone. Water from the surrounding aquifer fills in the vertical hole, or well, which can be pumped. As water is pumped out, water from the surrounding aquifer seeps back into the well borehole.
