Question

Limestone is changed into marble​

Answer 1

Answer:

Limestone is changed into marble when CO₂ is passed through it.

Answer 2

✔Marble is a metamorphic rock formed by the alteration of limestone by heat and pressure. The calcite in the limestone changes and fossils and layering in the original limestone disappear as interlocking grains grow. If the limestone is pure, a white marble is formed.