What is black when it is clean and white when it is dirty?

asked Oct 18, 2021 104k views

3 votes

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3 votes

Step-by-step explanation:

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

Drdot answered Oct 20, 2021

by Drdot

4.9k points

7 votes

Answer:blackboard/chalkboard

Step-by-step explanation:

Zeokav answered Oct 23, 2021

5.6k points

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