Question : Spot the odd item of the following :

Option 1: shale

Option 2: Marble

Option 3: Limestone

Option 4: Sandstone.

Question : Which one of the following is igneous rock ?

Option 1: limestone

Option 2: granite

Option 3: marble

Option 4: slate

Question : Spot the odd item in the following :

Option 1: Basalt

Option 2: Ruby

Option 3: Emerald

Option 4: Sapphire

Question : Limestone, chalk and marble are different forms of ______.

Option 1: Calcium Phosphate

Option 2: Calcium Hydroxide

Option 3: Calcium Oxide

Option 4: Calcium Carbonate

Question : The chemical composition of cement is

Option 1: Limestone and Clay

Option 2: Limestone, Clay and Gypsum

Option 3: Limestone and Iron

Option 4: Clay and Gypsum

Question : Which of the following is an organic rock ?

Option 1: Marble

Option 2: Coal

Option 3: Granite

Option 4: Slate