Which process contributes significantly to the formation of freshwater lakes in tectonically active rift valleys?

💡 Explanation

When tectonic forces cause extension, block faulting occurs because normal faults develop, resulting in a graben structure where the central block subsides, often intercepting groundwater or surface runoff, creating a lake. Therefore graben formation contributes significantly, rather than rebound, differential erosion, or solution, which require different geological contexts.

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