Question

Help me

Which rock is NOT sedimentary?
A.shale
B.schist
C.limestone
D.sandstone

Answer 1

Schist is not an example of sedimentary rocks.

Step-by-step explanation:

Sedimentary rocks are formed by the continual deposition of small particles carried in rivers and deposited in lakes or oceans which are subsequently cemented over time due to pressure from the upper layers and presence of some minerals at the Earth's surface. They are majorly in layers and the three types are; organic, chemical and clastic. Common examples are; sandstone, limestone, and shale.

Answer 2

The answer is option B "schist." Schist is a metamorphic rock and metamorphic rocks are formed by intense heat and pressure. It wouldn't be options A, C, or D because these are indeed sedimentary rocks which are formed by deposition and compaction.

Hope this helps.