What happened to the economy after the Songhai kingdom fell in Western Africa?
A. It became more prosperous.
B. It experienced a decline.
C. The slave trade no longer impacted it.
D. Those in the 15-40 age range became the primary
workers.

Consider the events in alfred wegener's life that led to his development of the continental drift hypothesis. review the items below and determine whether each item is (1) an observation that led alfred wegener to develop his continental drift hypothesis, or (2) evidence wegener gathered to support his proposal.