Any girl wanna do video call?

I am a boy

How many cells are our body made of ? ♡

What did hunter gathers do to alter the environment?

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.