Please help with these questions!

Ahill is made of rock particles of different sizes. which of these agents of erosion probably caused the hill to form?

Which statements about wells are true? check all that apply. a) wells bring groundwater from the unsaturated zone to the surface of the water. b) wells need to be drilled below the water table. c) if water is pumped from a well too quicky, the well may run dry. d) water from wells is generally not safe to drink. e) water gushes from artesian wells due to pressure.

How many years is a term in the senate