Ordinal. Though more likely interval or even ratio scale.
interval
ratio
interval
Ratio
It is a ratio scale of measurement.
The year is interval scale (no natural zero); your age is ratio.
Age is none of the items listed. Age is ratio data.
Ordinal. Though more likely interval or even ratio scale.
It is ratio.
interval
interval
ratio
interval
Nominal Scale < Ordinal< Interval < Ratio
Year of birth is interval level of measurement; age is ratio.
Ratio. It has a true zero.