Explain what the term depth means in relation to a drawing or a painting.

The apparent distance from the front to the back of the painting.
Techniques are used to make the painting have the illusion that it has depth  

hope this helps :)

Distance or realistic 3D elements to a painting

This is called adduction

The answer would be online media like a social media. it does refer to forms of different media content created publicly by the end users since 2005 and would cover how people use social media.hope this would be of .