An acre is about the size of a football field. How many acres of chinampas surrounded Tenochtitlan?

What makes the just-world hypothesis psychologically appealing to the average person? a. many people develop skewed perceptions based on their worst experiences with the poor, which makes it hard for them to see things objectively. b. it is supported by a wealth of empirical data. c. most people’s everyday experiences teach them that society tends to distribute rewards and punishments fairly. d. most people have a strong need to believe that the world is orderly, predictable, and fair.

What problem does obeng say that we have in the 21st century? 2. obeng argues that the pace of change has eclipsed the pace of learning. do you agree or disagree? why? 3. what is "smart failure" according to obeng?

1. describe at least 3 similarities or differences between homo habilis and australopithecus 2. describe at least 3 similarities or differences between cro-magnon and neanderthals.