Which method did italian renaissance artists use to give their flat paintings a sense of depth

The idea of manifest destiny simply stated it was america's destiny to expand from the atlantic ocean to the pacific. the word "destiny" implies an idea that it was within our rights as a nation to expand. in a paragraph of 125+ words, explain what could be wrong with that idea.

The television had many impacts after it's invention. which of the following describes impacts of television? -brought people together -allowed people to see others-people saw america as the land of plenty- all the above

Who were some of the most important scientist in there and shipments of the revolution