Why did the egyptians spend years and many resources to build enormous tombs for their dead pharaohs?

The Egyptians spent many years and many resources building enormous tombs for their dead pharaohs because they thought that these leaders were spiritual beings, who were there by divine influence, and therefore needed to be respected and lavished with the highest form of wealth and extravagance. 

evaluate the extent to which the seven years' war (french and indian war, 1754–1763) marked a turning point in american relations with great britain, analyzing what changed and what stayed the same from the period before the war to the period after it.