Why did Emperor Taizu reform the civil service exam? -He thought students needed a tougher challenge
-He wanted to award government jobs based on merit.
-He wanted to strengthen military control over the government.
-He wanted more aristocrats holding government offices.
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Why was charliemagne hesitant about being crounded holy roman emperor?

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.

Should the u.s limit the number of terms a lawmaker serves in the u.s congress 5 paragraph response argumentative