The difference between American passport and American green card

The main difference between these two things is that a passport is proof of citizenship, while a green card is proof of permanent resident status.

American passport is an identity card issued by the American government to American citizens, which proves that the holder is a legal citizen of the United States. The basic information of the holder and the signature of the American government are printed on the American passport, which can be used by the holder in travel, study and work.

The American green card is a permanent identity card of the United States, which is issued by the US Immigration Bureau to applicants who meet the requirements of immigration law to prove that they are legal permanent residents of the United States. Holding an American green card means that the applicant has obtained permanent residency in the United States. They can live, work and study in the United States and enjoy some welfare benefits, such as medical care and education.