"Preguntas de inmigracion" is a Spanish phrase that translates roughly as "immigration questions" in English. "Immigration" is the act of moving to a country that one is not originally the native of for an extended or permanent residency, according to Dictionary.com.
Immigration is also defined as the act of an organism either passing through or coming to a new habitat or place, notes Dictionary.com. The phrase "immigrate" originated from the Latin phrase immigrātus. It came into use in English around 1612 to 1625.
Spanish is a Latin language like English, which is why the word "immigracion" is so similar to "immigration". Both of these terms originated from the same root word.