Smoking actually increases certain infections.
Hello!
1) The #1 social cause of civil war was the debate on slavery.
2) The #1 political cause of the civil war was the states rights
3) The #1 economic cause of the civil war was the expansion of areas for farming. Some country's couldn't provide enough food for the people because there wasn't enough area to farm.
I hope it helped!
Sometimes it's called benefit cost analysis.
