Please help I will give a brainliest

What from the columbian exchange had perhaps the biggest impact on the world?

The battle of sabine pass is important because? a) it was a stalemate between union and confederate armies. b) it resulted in the largest confederate casualty in the war. c) it marks the failed attempt of the union army to invade the confederate state of texas. d) it was won by the union soldiers and marked a turning point in the western front of the war.

Compare the lives of slaves in mines and farms versus those in households