The answer is:
They will serve in the military when required.
They will support and defend the US Constitution.
They will show allegiance to the nation's laws
Basically, all naturalized US citizens are required to upheld the same obligations like the citizens that born in united states. Voting in election and volunteering in political campaigns are considered to be the right/freedom of the citizens, not the obligation. You would not face legal punishments if you choose to avoid your rights, but you could face it if you avoid your obligations.
Observational methods, case-study methods and survey methods.
Observational Method
With the observational method (sometimes referred to as field observation) animal and human behavior is closely observed. There are two main categories of the observational method — naturalistic observation and laboratory observation.
Case Study Method
Case study research involves an in-depth study of an individual or group of indviduals. Case studies often lead to testable hypotheses and allow us to study rare phenomena. Case studies should not be used to determine cause and effect, and they have limited use for making accurate predictions.
Survey Method
In survey method research, participants answer questions administered through interviews or questionnaires. After participants answer the questions, researchers describe the responses given. In order for the survey to be both reliable and valid it is important that the questions are constructed properly. Questions should be written so they are clear and easy to comprehend.
Answer:
The Tapti River is a river in central India between the Godavari and Narmada rivers which flows westwards before draining into the Arabian Sea. The river has a length of 724 km. Its origin is near Multai Reserve forest in MP. From there it enters Maharashtra and flows through western part of Vidarbha and Khandesh