Cross contamination occurs when one food comes into contact with another food and mixes with the what?

Which one of these is a involving in both sexual and asexual reproduction

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.

Anton created a chart listing different types of materials. which best complete the chart?