Why were hermione and others concerned about communication at hogwarts?

What conclusion can be drawn from the information in the chart? a) africa's total number of hiv/aids cases makes up close to 20% of the world's total aids cases. b) poverty and lack of education are the only factors that have pushed the african aids rate to 6.1%. eliminate c) a major challenge facing african governments is finding a way to effectively combat the aids epidemic. d) north american aids rates are lower than the worldwide rate because of extensive government intervention and spending.

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.

1. what is the electoral college?