What is the civil war

A war between citizens of the same country. There have been many examples would be the American Civil War. That one was about the long standing views on slavery, the Union wanted slavery to end, while the Confederates want to keep it. In the end the Union won the war, and slavery ended, after Lincolns Emancipation Proclamation.

Explanation:

The American Civil War was a civil war in the United States from 1861 to 1865, fought between the northern United States and the southern United States. The civil war began primarily as a result of the long-standing controversy over the enslavement of black people

Explanation:

Because that's what it is...

the answers is b.   environments.

during the ming dynasty