One reads about an accident at a railroad crossing and wonders about the cause. Perhaps the car's driver overestimated the distance of the train because the parallel tracks stimulated the monocular depth cue of:.

Linear perspective is a monocular depth cue in that causes parallel lines to appear to meet at some point in the distance. The vanishing point is where the lines seem to merge.

Explanation:

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answer; i believe that the correct answer is ; the eastern and western churches spoke different languages;