How can geologists use acid to confirm that the rock towers on the limestone?

Geologists can use acid to confirm that rock towers are composed of limestone by performing an acid test. When a weak acid, such as hydrochloric acid, is applied to limestone, it reacts with the calcium carbonate in the rock, producing carbon dioxide gas and causing effervescence or fizzing. This reaction indicates the presence of limestone, as other rock types typically do not show this characteristic. By observing this reaction, geologists can effectively identify and confirm the composition of the rock towers.