As our visual system processes light energy, the last step in converting one form of energy into another is

Assume that the banner needs to be 18 feet long instead of 15 feet

What is a system where wealth and property are privately held and profit is the goal rather than providing for collective needs? a. capitalism b. socialism c. communism d. feudalism

This is an ap world history question. i am working on a worksheet which has a vent diagram with each circle labeled either us or byzantine economy. the middle is the similarities. can someone explain to me the similarities and especially the differences between the two?