Question

what black when we buy it red when we use it and grey when u throw it

Answer 1

Answer:

Charcoal

What is black when you buy it, red when you use it, and gray when you throw it away? It is Charcoal which is black when we buy it or when not being used. It gets red in appearance when put in use means to say when burning.

Answer 2

Pencil

Hopefully it helps you mark me BRAINLIEST