What were Hitler’s views on “racial purity”?

the racial policy of Nazi Germany was a set of policies and laws implemented in Nazi Germany (1933–45) based on a specific racist doctrine asserting the superiority of the Aryan race, which claimed scientific legitimacy. This was combined with a eugenics programme that aimed for racial hygiene by compulsory sterilization and extermination of those who they saw as Untermenschen ("sub-humans"), which culminated in the Holocaust.

Explanation:

For years before Adolf Hitler became chancellor of Germany, he was obsessed with ideas about race. In his speeches and writings, Hitler spread his beliefs in racial "purity" and in the superiority of the "Germanic race"—what he called an Aryan "master race." He pronounced that his race must remain pure in order to one day take over the world. For Hitler, the ideal "Aryan" was blond, blue-eyed, and tall.

When Hitler and the Nazis came to power, these beliefs became the government ideology and were spread in publicly displayed posters, on the radio, in movies, in classrooms, and in newspapers. The Nazis began to put their ideology into practice with the support of German scientists who believed that the human race could be improved by limiting the reproduction of people considered "inferior." Beginning in 1933, German physicians were allowed to perform forced sterilizations, operations making it impossible for the victims to have children. Among the targets of this public program were Roma View This Term in the Glossary (Gypsies), an ethnic minority numbering about 30,000 in Germany, and handicapped individuals, including the mentally ill and people born deaf and blind. Also victimized were about 500 African-German children, the offspring of German mothers and African colonial soldiers in the Allied armies that occupied the German Rhineland region after World War I.

Hitler and other Nazi leaders viewed the Jews not as a religious group, but as a poisonous "race," which "lived off" the other races and weakened them. After Hitler took power, Nazi teachers in school classrooms began to apply the "principles" of racial science. They measured skull size and nose length, and recorded the color of their pupils' hair and eyes to determine whether students belonged to the true "Aryan race." Jewish and Romani (Gypsy) students were often humiliated in the process.

Explanation:

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c. troops marched forward in close formation against newer, more accurate weapons

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.