Final answer:
The statement is true.The percentage of the adult population in America that is registered to vote is remarkably high.
Step-by-step explanation:
The statement that the percentage of the adult population in America that is registered to vote is remarkably high is true.
The passage provides information about voter turnout in the United States in comparison to other countries, stating that voting rates in the United States are higher than in most democratic industrialized countries.
It mentions that efforts have been made to increase voter registration, such as through the Help America Vote Act and online voter registration.