What time in the past does "prehistoric" refer to?

Which of the following countries has declared itself nuclear free

Jennifer is visiting her grandmother, who lives in the northeast corner of oklahoma. the region is home to many lakes, and jennifer enjoys canoeing on the illinois and grand rivers. to which region of oklahoma is she traveling? the prairie plains, the ozark plateau, the red river plains, the red beds plains

Does water only take one path through the water cycle? (15 points)