Jimmy looks at a picture of a side of a submarine that has dents and bumps on it. When he turns the picture upside-down, what he originally perceived as bumps, now look like dents, and vice versa. This is due to
A) figure-ground reversal
B) the oblique effect
C) accidental properties of light
D) the "light-from-above" assumption

What does the author describe in this passage

Which examples are relevant sources for students to use in research? check all that apply. a journal entry written by a professor who is considered an expert a report written by an independent government source a presentation by a company that includes paid information a document published by a renowned organization a scientific paper put out by a non-profit organization a blog whose author tries to sell a product or service

Which area of economics uses value judgments to make recommendations for future actions?