Question

what is black when clear, and white when dirty​

Answer 1

Answer:

A blackboard

. It's solid black when clean, and as you write on it with white chalk it becomes dirty.

Explanation:

HoPe It HeLp'S UHh ❣

☺APpY ChOcO DaY ☺

PlS Flw me pls☹pls

thanks = thanks

✌ITZ AbUsiNg QuEeN ✌

Answer 2

Answer:

a chalk board or black board