What is a killing of an entire group of people just because of their ethinic identity

Why is it important to understand the interestonality of slavery? plz

There were 395 lemon ice cups at the snack shop.people bought 177 ice cups how many lemon ice cups are still at the snack shop

About the size of pickup trucks from where you're floating, the organelles called mitochondria convert energy from your food into adenosine triphosphate, or atp, to power biochemical reactions. a typical cell burns through 1 billion molecules of atp every 1 to 2 minutes." summarize this pleas and aspa i will give brainless