Explain differentiation and how it is related to the formation of earths layers.

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.