Why doesn’t gastric juice digest the inside of the stomach?

This is because the stomach has a lining that protects it from being digested. The stomach lining is made up of epithelial cells, which produce and secrete a bicarbonate-rich solution that coats the mucosa.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

oxygen +1 most likely