By fermentation, the yeast species Saccharomyces cerevisiae converts carbohydrates to carbon dioxide and alcohols â for thousands of years the carbon dioxide has been used in baking and the alcohol in alcoholic beverages.
In a memo last September, President Obama said the United States would admit up to 70,000 refugees to the United States during Fiscal Year 2015, as justified by humanitarian concerns or the national interest. The number breaks down as follows: Africa................................17,000.
Thus, while the world's largest source countries for refugees include Afghanistan, Iraq, and Sierra Leone, some of the countries hosting the most refugees include countries like Pakistan, Syria, Jordan, Iran, and Guinea. Approximately 70% of the world refugee population is in Africa and the Middle East.