Which process involves the chemical combination of oxygen with minerals?

Which process involves the chemical combination of oxygen with minerals?

• A. Oxidation
• B. Hydration
• C. Salt Crystal Growth
• D. Biological Activity

Answer: (A)

Oxidation is the chemical combination of oxygen with minerals. In rocks, oxygen bonds with metallic elements like iron to form oxides such as hematite or rust, gradually changing the mineral composition and often aiding rock breakdown—a key type of chemical weathering. Hydration involves adding water to minerals, not specifically adding oxygen. Salt crystal growth is the precipitation of dissolved salts from solution, forming crystals rather than forming oxides. Biological activity refers to living organisms influencing weathering processes, which can accelerate, but does not describe the direct chemical bonding of oxygen to minerals.

Oxidation is the chemical combination of oxygen with minerals. In rocks, oxygen bonds with metallic elements like iron to form oxides such as hematite or rust, gradually changing the mineral composition and often aiding rock breakdown—a key type of chemical weathering. Hydration involves adding water to minerals, not specifically adding oxygen. Salt crystal growth is the precipitation of dissolved salts from solution, forming crystals rather than forming oxides. Biological activity refers to living organisms influencing weathering processes, which can accelerate, but does not describe the direct chemical bonding of oxygen to minerals.