According to the map above, which two regions are most densely populated areas in the world? a. north america and south africa b. south asia and east asia c. africa and australia d. north america and australia

these civilizations were located around fertile rivers, where they could produce an abundance of crops

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

is it multiple choice

people had jobs and began to work. that’s why the commercial revolution was great.