yes
Yes.
child support warrants?
Pay your child support and provide proof to the court.
As an individual, you can't. Your local Department of Human Services will decide if a warrant for arrest is justified and will work with the courts to have one issued.
A declaration in support and arrest warrant is filed when a non custodial parent refuses to pay child support. Occasionally a warrant could be filled for alimony.
The arrest warrant can be enforced anywhere in the US, and any other country with which the US has an extradition agreement.
Yes.
YES
If it's an arrest warrant, sure. Doesn't matter what it's for, though it sounds more like a bench warrant for contempt of court, when someone failed to show for a hearing on overdue child support.
A civil warrant hold is a civil arrest warrant. A civil warrant hold can be executed in several types of civil cases, for example child support.
Even if you never knew you had a child. see link
Most likely.