Why is a drop of food coloring in water a good model for the process of diffusion?

Because the food coloring distributed throughout the container until it was equally distributed. 

The answers is gonna be 20

My teacher was in one when she was in high school. these abusive lovers can ruin you. mentally and physically. my teacher got a black eye once. she wasn’t able to attend parties or even her moms birthday party all because her bday wanted her to himself.