They started using perspective and this is what gave the illusion of depth in the images
This one is pretty easy, emperor Constsntine, I think that's how you spell his name.
Answer:
The reason for this is because the Monte Alban pyramid complex was completely abandoned by the year 1000 AD due to socio-economic problems. In fact, wealth disparity and the over exploitation of natural resources were the two primary causes of the decline of all of the ancient civilization.
<span>the ruling class would not willingly give up its power and position in government</span>