Spain colonized Florida and the Rio Grande valley because S<span>pain wanted to protect its colony in Mexico from other Europeans.</span>
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.
During the twentieth century, the federal government of the US country becomes stronger, more powerful, and richer in comparison to the previous years.
<h3>What is the federal government?</h3>
The government in the country of the US is called the federal government. It includes the various states and provinces of the US country which have the power to make relevant laws and take reliable decisions.
The US country became the leading country in the year 1917 in the political world. After world war II, the US country becomes more powerful in the whole world. They become a member of the trading organizations and military organizations of the world. They also had a lead role in political scenarios of the world.
Therefore, the federal government of the US country has developed a lot in the 20th Century.
Learn more about the US in the 20th Century in the given link;
brainly.com/question/15387599
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In exchange for land, a knight agrees to be a sort of sub-vassal to a vassal. This agreement was known as Subinfeudation
.
Answer: Option 4
<u>Explanation:
</u>
In the feudal system, the knights were granted the potion of land for their usage in return for their services to the feudal tenants or other superiors. In a way, it was a mode of paying fees to the knights and this agreement was named as subinfeudation and the holding was called as sub-fee.
This practice was prevalent until 1290 when the statute of Quia Emptores was passed which outlawed this practice of paying the knight’s fee in terms granting a piece of land.
Every four years the President,vice president,one third of the senate,and the entire house are up for election(on-year elections). I hope this helps you...
