Yes it does.
It is about a foot to a foot and a half.
In the Summer ficus tree like to be outdoors, winter they do really well inside and don't require a lot of light. Ficus are almost indestructible.
There is a small proportion of peat moss mixed in with the mineral soil substrate, but ultimately no: There is no well defined moss covering layer as is pictured.
Yes, it requires sunlight.
I’m not 100 percent sure but I would think no. mine is a at north facing window and is doing great.