Answer:
In writing, contrast is a technique where two or more significantly disparate elements are juxtaposed in order to call attention to their distinctions. It can be employed in a variety of ways, such as comparing characters, themes, settings, or even sentence structure. Contrast is a useful tool for writers to help express their own viewpoint, as it emphasizes the differences between ideas and can demonstrate the author's beliefs and values. Furthermore, contrast can also create tension and suspense in writing, making it more captivating to the reader.
As an example, Harper Lee's novel "To Kill a Mockingbird" employs the contrast between the children's innocence and the adult world's prejudice and injustice to draw attention to the irrationality of the Jim Crow era. This contrast represents the author's voice as one that is not afraid to take on challenging topics, and that is able to effectively communicate complex ideas through vivid characters.