Question

Distinguish between the following:

Carbonation and Solution.

Answer 1

Feature	Carbonation	Solution
Definition	Carbonation is the process where carbon dioxide in the atmosphere reacts with minerals like calcium carbonate in rocks to form carbonic acid, which dissolves the minerals.	Solution is the process where minerals in a rock dissolve directly in water, especially when the water is acidic.
Process	Carbonic acid formed from carbon dioxide dissolves minerals like calcium carbonate, leading to rock breakdown.	Water (especially rainwater) dissolves minerals, breaking down the rock without chemical change.
Common Rock Types Affected	Common in limestone and marble, which contain calcium carbonate.	Common in rocks like limestone, gypsum, and salts, which dissolve easily in water.
Result	Rocks like limestone dissolve over time, leading to the formation of caves and karst landscapes.	Rocks are completely dissolved in water, often forming features like sinkholes or dissolution channels.
Example	The dissolution of limestone to form calcium bicarbonate by carbonic acid.	The dissolution of limestone by rainwater containing dissolved carbon dioxide.