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)
Sajan sarthak
MAY BE OPTION D IS CORRECT BUT I FOUND MOST APPROPRIATE IS OPTION C ....BELOW IS A GRAPH OF QUARTZ POLYMORPH YOU CAN SEE THE PRESSURE AND TEMPERATURE RANGE MUST BE VERY MUCH HIGH INORDER TO TRANSFORM COESITE TO STISHOVITE...SO AT THE SURFACE THE FEASIBILITY IS VERY LESS FOR THAT.