Sends you unwanted, explicit pictures and demands you send some in return. Pressures you to send explicit videos. Steals or insists on being given your passwords. Constantly texts you and makes you feel like you can't be separated from your phone for fear that you will be punished.
1. The retina contains three kinds of colour receptors
Explanation:
Young-Helmholtz theory color vision says human can perceive colour due to the presence of colour receptors in the retina that receives colour in various wavelengths
