B. leave mainstream society
I think
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:
Answer:
North America Free Trade Agreement
Explanation:
hope this helps :-)
The Songhai leader who left a
legacy through the reforms in his empire was Muhammad I Askia or Muhammad Ture.
Under his governance, he began organizing his land by setting up regions which
were under the leadership of governors together with their armies under the
ruling of a general and an admiral. He
also began setting departments and offices for finance, justice, interior, agriculture,
etc. He indeed strengthened the administrative system of what his predecessor
had left unorganized. After a lot of
quests and changes in his governance, he was able to expand and strengthened
his empire. In 1528, he was defeated and overthrown by his son, Askia Musa.
