What exactly does your question mean??
Answer:
Explanation:
It's both depending on the circumstances.
If your born in one of the 48 mainland states + Alaska + Hawaii it is geography.
If you choose to come to America and have acceptable qualifications, then its choice.
About 90% of all stars are in the main sequence including our very own sun. They are the stars that are going through nuclear fusion, turning hydrogen atoms into helium.
Misjudge is one for a word or sentence <span />
Somthing went wrong when i put the answer in so ill comment it