The image about shows a type of metamorphic rock called gneiss Gneiss is characterized by the altering bands of Law and dark minerals the bands in this particular sample of gneiss have been folded the characteristics of the drug develop due to blank and blank during the rock formation

Answer 1

The characteristics of gneiss develop due to heat and pressure during the rock formation. These conditions typically arise during regional metamorphism, where pre-existing rocks (either igneous, sedimentary, or earlier metamorphic rocks) are subjected to intense tectonic forces and elevated temperatures, leading to the formation of the banded appearance and foliation commonly seen in gneiss.