Legal U. S. citizens are those who are natural-born or naturalized U. S. citizens. Which obligation is only for legal U. S. citizens? Obeying the laws
Paying taxes
Serving on juries
Being active in the community

Obeying the law

Explanation:

U.S. citizens must comply with certain mandatory obligations, including: Obeying the law. Every U.S. citizen must obey federal, state, and local laws, and pay the penalties that can be incurred when a law is broken.

abolish

do away with

unanimous

in complete agreement

secede

separate; break free

inauguration

starting a new position with a formal ceremony.

cooperationist

people who wanted the north to cooperate with the south

surrender

to give up

volunteer

perform a service for free

draft

involuntary service in military

retreat

withdraw; move away from enemy

advisor

expert who gives advice

explanation:

answer; ///biological psychologists;