Which was a direct result of the african slave trade?
a. african leaders were encouraged to fight against european traders
b. tribal warfare increased
c. powerful new african nations were formed
d. there was a new emphasis on artistic development in africa

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

U.s. foreign aid incudes all the following programs excepta. humanitarian aidb. military assistancec. cycle of dependency grantsd. development aid

Radiation was first detected by a ?