The individual is the presiding officer of the Senate whenever the Vice President is not present is the president protempore. <span>The </span>president pro tempore<span> (or, "</span>president<span> for a time") is elected by the Senate and is, by custom, the senator of the majority party with the longest record of continuous service.</span>
Answer:
South Africa was rarely visited by European and Islamic traders
The theory that was used to justify claims of racial superiority was <u><em>social Darwinism.</em></u>
Social Darwinism was a group of ideologies that arose in the late 1800s in which Charles Darwin´s theory of evolution by natural selection, was used to justify certain social views.
According to the theory, the weak were diminished while the strong grew in power over the weak.
One of the persons who adopted social Darwinism was Adolf Hitler, who considered that the German master race had grown weak due to the influence of non-Aryans, so he targeted certain groups of people that he considered biologically inferior for extermination such as jews, homosexuals, etc.
Very understanding and polite.