Which of the following best illustrates the process know as the colombian exchange?

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.

Who gave the famous "i have a dream" speech at the march on washington?

Marcy tests a solution with a strip of blue litmus paper. the paper turns red. the solution is acidic basic neutral