Geography, asked by aksajoy2899, 1 year ago

I am a metamorphic rock,dark grey in colour.I am used in make to roofs and black board

Answers

Answered by soumya6517
3

Answer:

slate is right answer for this question

Answered by aditya5472
2

Answer:

Slate

Explanation:

slate is an metamorphic rock which is dark grey in colour and it is used to make roofs and blackboards.

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