Hey, I saw your post saying that you got an atar of 99.95 :O congratulations! Is it possible for you to give me some advice about how much you had to study etc? Thank you.
just this one ->
• Explain that colour can be obtained through pigments spread on a surface layer (e.g. paints) or mixed with the bulk of material (e.g. glass colours).
i am unsure what is asking.