D. because he thought that the New World was India
The correct answer is <span>Attitude, Belief, Behavior, or Institutional arrangement that favors one race or ethnic group over another.
Racism is any type of discrimination in which one ethnic group is favored over another ethnic group. It may exist in the traditionally understood sense where one race such as Caucasian believes that they are better than another race such as African people, or it can be in the form of two groups belonging to the same race perceiving each other as the worse race which often happened in civil wars in Africa.</span>
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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:
It was the main cause as all great European powers wanted to spread their imperialistic and colonial power.
Explanation:
After Italy and Germany were unified European political scene was totally different. Old powers felt threatened by the rise of these countries, while on the other side, Germany and Italy, together with Austria-Hungary wanted to strengthen their role.
After the Berlin Conference it was obvious that France and Britain had dominance in the colonies, therefore the so-called Central Powers wanted to rearrange this.
Entente powers didn't wanted to change their stance and it was just a question of time when the world will begin.