Brightness is an attribute of visual perception in which a source appears to be radiating or reflecting light.In other words, brightness is the perception elicited by the luminance of a visual target. This is a subjective attribute/property of an object being observed and one of the color appearance parameters of color appearance models.
I think the answer is A, but I'm not sure
I am not sure this is right but I would have to go with 140°
Hope this helps
The answer that would best complete the given statement above would be the term REPETITIVE STRESS INJURIES. So, manual <span>pipetting creates a musculoskeletal load on the neck, shoulders, and upper limbs, and the types of injuries that this can lead to is called repetitive stress injuries. Hope this answers your question.</span>