It showed that the north and the south were divided.
It made it weak. States were gaining more power while the government was losing power. The government was losing control of the states. States were becoming more independent since they started to run individually.
Because they were very dangerous , sinking ships and setting off big bombs

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