Solve this riddle." i am the first on earth, the second in heaven, i appear two times in a week, you can only see me once in a year although i am in the middle of the sea, what am i?

Which of the following is not an effect of land substance

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

The amazon river is in africa true or false