Choose the item that is an example of the geographic theme of location. a. 1600 pennsylvania ave. nw b. tourism is the major source of income. c. russian farmers brought wheat to america. d. dynamite was used to build tunnels through mountains in the european union.

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.