If a person does not consume alcohol where would the alcohol (that this enzyme breaks down) come from?

This happens due to a genetic deficiency in the way they metabolise alcohol in their liver and their body gets flooded by a toxic by-product alcohol called acetaldehyde In a normal liver, acetaldehyde is broken down into a harmless non-toxic substance called acetate and won't cause any serious symptoms

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.