Korea was divided into north and south along the after world war ii. a. mason-dixon line b. 38th parallel c. 17th parallel d. tropic of capricorn

Nuclear experimentation is a major global issue that affects relationships between countries. describe why countries try to limit the testing of nuclear weapons.

Plants can have a positive and negative effect on the rate of weathering

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.