Corrosion is the reaction of a metal with another material. These reactions are usually with very low PH or acidic materials such as sulphuric acid or reactions with high ph or basic materials such as sodium hydroxide.
... of English alveolars like t, but with the tongue curled back) (t, th, d, dh, n)
Dental (tongue against teeth, like Spanish) (t, th, d, dh, n)
Labial (with the ...