Final answer:
Veterans Day at Arlington National Cemetery includes a wreath-laying ceremony at the Tomb of the Unknown Soldier and other commemorative activities to honor U.S. military service members.
Step-by-step explanation:
Veterans are honored at Arlington National Cemetery on Veterans Day through a series of commemorative events and activities designed to pay respect to those who have served in the United States Armed Forces. One of the main events is the annual wreath-laying ceremony at the Tomb of the Unknown Soldier, which is attended by military officials, veterans, and the general public. The cemetery also hosts parades, moments of silence, and other special activities on Veterans Day to recognize the bravery, dedication, and sacrifices of America's veterans.