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SSC Geography QUESTION #6301
Question 1
Which combination of factors would most likely produce a karst landscape with extensive cave systems?
  • Impermeable granite bedrock with high precipitation
  • Thick limestone strata with joints, fractures, and moderate rainfall✔️
  • Basaltic lava flows with tropical climate
  • Sandstone formations with arid conditions
Correct Answer Explanation
Karst topography requires: (1) soluble bedrock (limestone/dolomite), (2) joints and fractures for water infiltration, (3) adequate precipitation for chemical weathering. Limestone dissolves in slightly acidic water, creating caves and sinkholes.