A)
X Y Pumice Granite
B)
X Y Granite Chalk
C)
X Y Marble Slate
D)
X Y Pumice Chalk
Correct Answer: D
Solution :
Pumice is a light colored, extremely porous rock that forms during explosive volcanic eruptions. Due to its high porosity, it can float on water until it slowly becomes waterlogged. Chalk is a soft, white, porous rock. It wears away easily when rubbed, so it is used to write on blackboard.
You need to login to perform this action.
You will be redirected in
3 sec
