Reading Comprehension (RC) | Re: The impressionist painters expressly disavowed any interest

I will see if I can help with Q5.
passage -
Color , formerly considered a property inherent in an object, was seen to bemerely the result of
vibrations of light on the object’s colorless surface.
The Impressionist world was composed not of separate objects but of many surfaces on
which light struck and was reflected with varying intensity to the eye through the atmosphere,
which modified it. It was this process that produced the mosaic of colors
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