When many layers of thin, runny lava build up a high, level area, the result is a a. lava plateau. b. shield volcano. c. cinder cone volcano. d. composite volcano.

Which revolution led to the development of these civilizations?

What benefits does this type of farming have?

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.