1
Yes, but he would get his GC through his wife not the adopted US citizen child.
As many as you wish. But you can only have them one at a time.
I'm not sure what your question is but if you were born in the US then you do not have to live in the States to maintain your citizenship. You can live anywhere in the world.
5
A citizen can petition their parents if the citizen is at least 21.
Oprah Winfrey has been a citizen of the US since her birth in 1954 in Mississippi.
Yes a Zambian citizen can marry a Us citizen and work in the us because the zambian citizen can obtain a citizenship by marriage and automatically become a citizen of us and is allowed and qualified to work there.
38,000,000
many us citizen died.
The child of a US citizen is considered a US citizen.
If you are running for the US Senate, you must be a citizen of the US.
No. Marrying a US citizen does not make someone a US citizen.