What type of money system designed by thomas jefferson

Which factor contributed to the rise of african empires such as ghana and mali?

Which of the following is true of emotions? (a) a neurologically-intact baby can show at least six distinct emotions at birth. (b) the character of emotions changes as we develop cognitively. (c) basic emotions are culturally- and developmentally-based. (d) in general, adults cannot interpret infant emotions until the infants are 10 to 12 months old.

What happens after a star goes supernova? just wondering! [tex]supernova [/tex] answer asap i really wanna know!