Question : Spot the odd item of the following :
Option 1: shale
Option 2: Marble
Option 3: Limestone
Option 4: Sandstone.
Correct Answer: Marble
Solution : The correct answer is marble.
According to their formation rocks are divided into three types. They are sedimentary rocks, igneous rocks, and metamorphic rocks. Examples of sedimentary rocks are sandstone, limestone, soapstone, shale etc. While marble, gneiss, granite etc. are metamorphic rocks. Basalt is the most common type of igneous rocks.
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