Why do you think that backlighting is used in so much of Sheldon's photography? pls help 10 pts

In russian churches the number of domes usually matches the number of altars. but this church has only one altar dome, and 21 symbolic ones. what normal construction device does this church lack?

Is the classification for an instrument that produces sound by vibrating a string or strings stretched between two points

Which printing technique is ink applied to a design cut into an metal plate which is then processed onto paper to transfer the image