Answer:
Black fabric absorbs all colors of light and is therefore darker than white fabric which reflects all colors.
Explanation:
This is because of how light works, the darker the color the more it absorbs light, while the lighter the color, the more it reflects. Black and white are the ends of each spectrum in a way. You have all your light and dark colors in between but black and white is where it would technically "end". White is the most reflectent of light, and black is the most absorbent of light.
