Which is not a form of rock deformation?

ductile deformation

erosional deformation

brittle deformation

Erosional deformation is not a form of rock deformation.

Answer: Option B

Explanation:

Rocks are all the time being subjected to force within the surface of earth because of which these rocks tend to twist, bend or get fractured. This causes the rock to change in their shape or size which is known as the deformation of rock and this deformation is affected by temperature, rock type, time and the pressure. Rocks deform in two ways which are ductile and brittle deformation.