It employs the scientific method of Psychology Definition, gathering knowledge and information. It uses scientific procedure that is essential to be adopted in order to carry out psychological research otherwise the research will not be considered authentic, reliable, or scientifically valuable.
If you marry a U.S, citizen, you wonât be eligible for U.S. citizenship right away. But you may become eligible for a U.S. green card, which can lead to U.S. citizenship. However, there are certain requirements that must be met before you can apply for a green card and ultimately for U.S. citizenship after marriage to a U.S. citizen.
The most common routes to dual (or triple or more) citizenship are birth, marriage, or naturalization. For example, if you are born in the United States, you automatically become a citizen here. But if your parents are nationals --citizens--of Mexico, for example, you will also be a Mexican citizen.