12. Economic significance of karst regions

♤ Karst regions are often barren. The porosity of the rocks and the absence of surface drainage makes vegetation growth difficult. Therefore, these regions support short turf and poor grasses.

♤ However, limestone vegetation in tropical regions is luxuriant because of all the year round rainfall.

♤ Lead is the only mineral of importance in karst region. Lead occurs in veins in associations with limestone.

♤ In addition to this, Limestone is used as building materials or quarried for the cement industry.

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