Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Rahul kumar Best Answer
Igneous rocks can have secondary porosity. Crystallization of igneous rocks creates crystalline texture and primary porosity is not created. However fracturing, dissolution can create secondary porosity and permeability. So yes an igneous rock can have high porosity and permeability of secondary origin.