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in mild cases, yellow fever causes a fever, headache, nausea and vomiting. But yellow fever can become more serious, causing heart, liver and kidney problems along with bleeding. Up to 50% of people with the more-severe form of yellow fever die of the disease
Explanation:
If this helps mark brainiest.
Answer:
the president and other national powers.
Explanation:
<span>The organization that was created to unionize both unskilled and skilled workers was Congress of Industrial Organization. This federation brought workers together in industrial fields to form unions from the US to Canada from 1935-1955. The American version was the largest federation of the unions ever in the US. It included fifty-six unions which represented over 12 million workers who were both active and retired.</span>
People started migrating to the cities because the cities provided the people with better opportunities to lead a prosperous life.
Answer:
The answer is: A system of numerals
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