When carlos's grandfather migrated to the united states, he had completed six years of schooling and was an agricultural worker in california. carlos's father completed high school and worked for twenty years as a clerk in a large state agency. through the efforts of his father and grandfather, carlos was able to graduate from college and medical school, and he now has a thriving medical practice in southern california. carlos's family exemplifies mobility.?

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.

What greek scientist created a screw to move water for irrigation?

When zhang qin went to explore west, he brought back stories of