How did threats to the southern identity lead to the secession of the south

The main cause of southern succession was the US 's inability to solve the issue of slavery at national level.

Explanation:

The primary cause of the civil war was that the southern states desired to preserve the institution of slavery. Northerners opposed to the expansion of slavery .

Some opposed it due to moral reasons and others felt that slave labor was unfair. When Abraham Lincoln was elected as president in 1960 seven southern states seceded from the Union.

The secessionists claimed that according to constitution every state has right to leave the union.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

a.) a poor farmer, due to the fact that they would want to be freed from british rule.