PLS HELP Magellan and his crew were the first explorers to sail completely around the world. This means they were the first to the earth.
A.
voyage
B.
circumnavigate
C.
astrolabe
D.
alliance

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

22. the effect of threshold braking is to a. cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.

Which factor contributed to the rise of african empires such as ghana and mali?