According to Beverly Raphael, what percent of survivors of a disaster could benefit from PFA?

25 percent

Explanation:

Beverly Raphael was a Professor of Psychology and was the first to coin the word Psychological First Aid which involves social support and help in the reduction of symptoms linked to stress for people who wen through psychological issues/illness.

She also proposed that the percentage of survivors of a disaster who could benefit from the psychological first aid could be around 25 percent of the population.

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.

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modern american cars are not available due to trade restrictions