Because Mae Jemison became the first African American woman to travel in space
According to the graph, we can say that <span>
Nigeria was generating greater revenue from oil in 1990 compared to previous years. </span><span>If we look on the table, we can see how the oil industry has covered more of the economy, so if it went down, Nigeria would get in serious economical problems.</span>
I believe it is A, constantine the great built the city etc.
