Why did Vincent Van Gouh cut off his ear?

He had an illness.

Explanation:

He had somewhat gotten into an argument with another artist he was working with, and it kind of triggered his illness during this. He grabbed a knife and cut his ear off as a result of the hallucinations given to him by the illness.

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-has naturalistic color-has neutral colors-has color harmony-has variations of colors with shading and reflections(charing cross bridge by andré derain; the copper drinking fountain by jean-baptiste-siméon chardin)the copper drinking fountain by jean-baptiste-siméon chardinchardin and derain used color differently in these paintings.which painting has these characteristics? -has fauve color-has monochromatic colors-has intense, unnatural color-has pure color with no shading(charing cross bridge by andré derain; the copper drinking fountain by jean-baptiste-siméon chardin)charing cross bridge by andré derain