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:
I think the correct answer from the choices listed above is option B. The Triple Alliance, also known as the Central Powers, consisted of Germany, Austria-Hungary, and Italy. <span>The </span>Triple Alliance<span> was a secret agreement between Germany, Austria-Hungary, and Italy formed on 20 May 1881.</span>
C. to serve as funeral homes
Answer:
The Patriots wanted freedom from British rule because they didn't think they were treated well
Explanation: