Q3.
Limestone is a sedimentary rock.
Limestone can be changed into a metamorphic rock.
(i) Give the name of a metamorphic rock formed from limestone.
(1)
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(ii) Explain how a sedimentary rock, such as limestone, is changed into a metamorphic rock.
(2)
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(iii) Sedimentary and metamorphic are two types of rock.
Give the name of the third type of rock.
(1)
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