What is an example of grow and develop?

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?

How do disease caused by bacteria and disease caused by viruses react to antibiotics?