It means the scientific study of sight and the behavior of light, or the properties of transmission and deflection of other forms of radiation
First body requires a topic sentence, evidence such as quotations, how evidence compares to topic sentence, transition to second part of body.
second body requires you stating information pertaining to the thesis.
third body consists of any more information that you may want to add, also include your conclusion.
Spelling error. It’s gratify, not gratify.
The letter m
It happens once is a Minute and twice in a MoMent but never in a lifetime.
