It looks very black
It would be a dark shade of red, becasue there isn't much red light for it to reflect.
like white cottony of fungus
Iron filings are very small pieces of iron that look like a light powder.
She did not like to look at herself in flourescent light, as she felt the natural sunshine was much kinder to her looks.
It doesn't "look like" anything, because it's far too small to interact much with visible light. The overall shape is, well, a tetrahedron. If you don't know what a tetrahedron is, think about what a pyramid would look like if it had a triangular base instead of a square one and you'll be pretty close.
Yellow-green, or lime.
It would look green...
blue
BLACK.
Try looking at it under a black light. Try lemon/lime/orange juice - rub it over the area and look under high magnification.
White reflects all colors. Since it is under yellow light, it will reflect the yellow color, making it look yellow.
Like a red T-Shirt.
I would be red.
An object that appears yellow under white light will have a tendency to maintain its distinctly yellow appearance when bathed in yellow light.
a black T-shirt
it is the headlight
Lime water is a clear and colourless liquid, but when exposed to Carbon Dioxide, lime water turns into a milky solution.