Evaluate the most significant development in the 20th century that challenged Europeans’ faith in science and technology as a way to improve people’s lives.

Love, which can’t be observed or measured directly, is an example of psychological construct

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?

In a person dependent on a drug, occurs when the drug leaves his or her system quickly or for a prolonged period of time. a. addiction b. withdrawal c. independence d. relapse