In what region do more than half the worlds people live?

Which of the timelines above correctly shows the order of historical events on the african continent? a. one (1) b. two (2) c. three (3) d. four (4)

Which of the following is an important principle of how water moves through a watershed? a. most freshwater is in the form of ice. b. small streams flow into larger streams. c. each watershed contains only a single source of water. d. clouds are formed through evaporation and then condensation.

Which of these scenarios is most similar to the aztec empire's system of agriculture? a. a farmer plants the same crops b. a farmer observes the behavior c. a farmer watches the sun’s patterns d. a farmer plants many different crops