Question

Metamorphic rock dark grey in colour used in making roofs and blackboard

Answer 1

Answer:

yes they are used making the Troops and the blackboard as they are strongest and green colour because because they found under the earth crust they are used to make the roofs because they are the strongest type of rocks these are strongest than sedimentary rocks and igneous rocks and because they are found under the earth crust they are black in colour so they are used in to make the blackboard

Answer 2

Metamorphic rock dark grey in colour used in making roofs and blackboard.

Explanation:

• The slate being a metamorphic rock which is dark and grey and is originated from the sedimentary rocks and is composed of the clay and the volcanic ash and is due to its foliation and clay flakes that are cutted with the foliation and specialized tools in quarry.

• And are formed smooth flat sheets of stone and that have long been used for roofing material and the floor tiles and has other uses. Various types of roof shingles are installed in buildings. As they remain flat and easy to stack and have a low water absorption.

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