ASAP pls answer right and I will mark brainiest

Under normal temperature and pressure conditions, what type of rock could be formed from weathering in erosion of metamorphic rock

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Which transition by an electron will release the greatest amount of energy? oa ob oc od