the price of the product will go up
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:
Imperialism: a policy of extending a country's power and influence through diplomacy or military force.
"the struggle against imperialism"
HISTORICAL
rule by an emperor.
EXAMPLE: ENGLAND TRYING TO TAKE OVER THE USA.
Answer:
i think the answer may be D