An Unhealthy pH Level. Tooth decay can occur when the pH level in the mouth is 5.5. For reference, the neutral level is 7.0. When we consume acidic foods and drinks, the pH within the mouth decreases and can cause the pH in the dental plaque to fall rapidly below 5.0.
Plastic Golden Age Passports are valid for a lifetime. However, if you do want the new Senior Pass, you may purchase one for $10, with proof of identification (e.g., driver's license, birth certificate, or similar government-issued document).lastic Golden Age Passports are valid for a lifetime. However, if you do want the new Senior Pass, you may purchase one for $10, with proof of identification (e.g., driver's license, birth certificate, or similar government-issued document).
A Hoosier Golden Passport provides unlimited admission to all Indiana State owned parks, recreation areas, reservoirs, and forests. It is NOT valid for historic sites, museums, memorials and other Department of Natural Resource (DNR) facilities. The pass is good for one calendar year. Persons eligible for a Disabled American Veteran license plate under IC 9-18-18-1 may purchase the Hoosier Golden Passport at DNR facilities around the State.