Hello! I would be happy to help you.
An antonym would be astronomy, which is the branch of science that deals with celestial objects, space, and the physical universe as a whole.
Another antonym would be psychology, the study of behavior and mind, embracing all aspects of conscious and unconscious experience as well as thought.
Hope this helps!
The answer is C. As a purple line with alternating semicircles and triangles
But this only apply on colored weather map, not the traditional one
I hope this help you out