HELP ME ASAP pleas it’s due tomorrow

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

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Based on what you have learned, why would victories in the western theater have been important to the union?