Final answer:
Eligibility for the Selective Service System requires U.S. males to be at least eighteen and to register within thirty days of their birthday. Noncitizens seeking U.S. citizenship through naturalization must be at least 18, have a green card, fulfill residency requirements, demonstrate good moral character, have English proficiency, understand U.S. government and history, and be ready to take the Oath of Allegiance.
Step-by-step explanation:
The student is inquiring about the eligibility criteria for the Selective Service System (SSG), which is a requirement for U.S. males when they turn eighteen. To meet the eligibility for SSG registration, an individual must be at least 18 years of age and must register within thirty days of turning eighteen. Additionally, any noncitizen looking to become a U.S. citizen through the naturalization process must meet specific criteria, including being at least 18 years of age, being a lawful permanent resident (a green card holder), residing in the U.S. as a lawful permanent resident for at least five years, being physically present in the U.S. for at least 30 months, and being a person of good moral character.
They must also have the ability to speak, read, write, and understand the English language, have knowledge of U.S. government and history, and be willing and able to take the Oath of Allegiance. Once these criteria are met, the individual can then proceed to fill out the N-400 form to formally apply for naturalization.