Igneous rocks are crwated by heat and pressure they form from lava of the crust surface from melting rocks from the mantle forming bt the cooling and molten magma on earth's surface
Oxidative phosphorylation relies on the hydrogen ion concentration gradient generated and maintained by the electron transport chain.
Hydrogen ions are actively transported out of the mitochondrial matrix.
Hydrogen ion concentration is higher in the intermembrane space than in the mitochondrial matrix.
It is A. Clay ....sand is not it
