Question on alpha - Terpinene and its Unsaturation

a-Terpinene is a natural oil isolated from turpentine as well as from oil of marjorum and other sources. Its formula is C₁₀H₁₆. It can be hydrogenated over a palladium catalyst and absorbs two molecules of hydrogen per molecule of a-Terpinene to yield a new hydrocarbon, C₁₀H₂₀.

How many degrees of unsaturation does a-Terpinene possess and out of them how many are double bonds and how many are rings?