This information is usually in the personal information page or flap of the passport.
no it doesn't indicate if a person in married or single.
Not if you are a US citizen. If you are a citizen of the country, you can travel to any place part of the country without a passport.
US citizenship.
Passport is a requisit.
You Don't. You need to have a passport in order to have a passport number.
The naturalization number is not located on the US passport. The naturalization number can be found on the Naturalization certificate.
You'll need a US PASSPORT to return to the US.
in order to leave or return the US you must have a passport.
No. The US is not a member of the EEU/EEA.
Maybe there is dual citizenship, but you need to contact passport services to find out.
no because you need a Italy passport. You cant use a us passport
Practically, it is safe to travel with a legitimate, valid passport of your country. If you are a dual passport holder then you use the particular passport for that country and the other passport for the other country. like if you are travelling to US then use US passport if you are travelling Canada use your Canadian passport.