Psoriasis causes the top layer of skin cells to become inflamed and grow too quickly and flake off. See Answer What are the symptoms of psoriasis? Guttate psoriasis symptoms and signs include bumps or small plaques of red itchy, scaling skin that may appear explosively, affecting large parts...
When the light rays travel from one medium to the other, striking the interface of different medium, then there is the change in the direction of light rays, this phenomenon of changing direction is called reflection of light. Reflection of light i...