Which topographic outcome results when acidic groundwater flows through limestone?

💡 Explanation

Extensive karst topography arises from acidic groundwater chemically weathering limestone through a process of dissolution, because carbonic acid in the underground water widens joints into fissures and caves; therefore prominent features like sinkholes and underground drainage occur, rather than glacial formations.

• Which mechanism alters stream flow acidity after acid rain due to surface runoff?
• Which sediment transport mechanism causes varves to form in glacial lakes during seasonal changes?
• Which outcome results when a tectonic uplift increases the gradient of a river feeding an alluvial fan?
• Which outcome results when an ocean gyre intensifies?
• Which feedback loop contributes to crevasse splays breaching levees?
• Which outcome increases following stream capture in highland regions?