Answer:
In 1590, al-Mansur took advantage of the recent civil strife in the empire and sent an army under the command of Judar Pasha to conquer the Songhai and to gain control of the Trans-Saharan trade routes. After the disastrous defeat at the Battle of Tondibi (1591), the Songhai Empire collapsed.
Explanation:
In 1590, al-Mansur took advantage of the recent civil strife in the empire and sent an army under the command of Judar Pasha to conquer the Songhai and to gain control of the Trans-Saharan trade routes. After the disastrous defeat at the Battle of Tondibi (1591), the Songhai Empire collapsed.
Answer:
European nations were rival and they also wanted to get colonies to gain an advantage over their rivals plus it was a sign of prestige and power
Answer:
I would say A
Explanation:
If we do process of elimination, the Union army did not capture Richmond till the end of the war. They didn't win the next major battle and the Union lost the battle of Chancellorsville. Therefore they couldn't capture Chancellorsville.

Economic issues caused many people to emigrate from nicarague.
Emigration means leaving a country and those who leaves a country are known as emigrants.
hence the correct option is
option A ✔✔
Thanks