1.) the churches were built during a time where people would go to church every week so they would spend money to make it Appling to people Aka beautiful. 2.) I don't have an answer sorry. hope this helps
A many shades of one color
It needs a aperture, compound lens, a photosensitive plate or paper, and a included box for the photosensitive paper to not get exposed by other light sources or a box that is black covered inside and out to not reflect any other light other than what comes thru the aperture or the shutter to precisely capture a amount of light to expose the film properly and not over or under expose it.
