Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous.Air, water, a piece of rock, a sheet of aluminum, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the fame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.

Fog: Translucent, non-luminous.
Piece of red hot iron: Opaque, non-luminous (but emits visible light due to high temperature).
Umbrella: Opaque, non-luminous.
Lighted fluorescent tube: Opaque (inside the tube), luminous.
Wall: Opaque, non-luminous.
Sheet of carbon paper: Opaque, non-luminous.
Flame of a gas burner: Translucent, luminous.
Sheet of cardboard: Opaque, non-luminous.
Lighted torch: Opaque (outside the torch), luminous.
Sheet of cellophane: Translucent, non-luminous.
Wire mesh: Opaque, non-luminous.
Kerosene stove: Opaque, non-luminous.
Sun: Opaque (from a distance), luminous.
Firefly: Translucent, luminous.
Moon: Opaque (from a distance), non-luminous.
Note: The classification of some objects may vary depending on specific contexts or conditions.