Answer:In 1947, Salk took a position at University of Pittsburgh, where he began conducting research on polio, also known as infantile paralysis. By 1951, Salk had determined that there were three distinct types of polio viruses and was able to develop a "killed virus" vaccine for the disease.
Explanation:
Espanol: ¿ Crees que, en la actulidad, las personas valor an elephant trabajo coming una fuerza transformadora?
La respuesta: En la actualidad debido a la pandemia, las personas han aprendido a valorar el trabajo como una fuerza transforadora.
English: Do you think people today value work as a transformative force?
Answer: Today because of the pandemic, people have learned to value work as a transformative force.
(I don’t know if the English thing is right or Spanish so if I’m wrong I’m sorry so stay with me because I’m still learning Spanish)
And ‘I don’t know’ should be followed by the effort to know, the research necessary to find out” (Vol. 2, p. 43). Maybe it’s the schooling atmosphere in which so many of us were raised, but somehow we have hard-wired it into our brains that saying “I don’t know” is admitting defeat. It is an embarrassmThe psychologist William Marsten polled over 3,000 people with the question; “What do you have to live for?” Only 6 percent responded that they had a major definite purpose for their life…94 PERCENT did not!! I was shocked! But, it does go a long way in explaining why so many people underachieve and waste so much of their potential.ent.
Based on my knowledge, I would say answer A
