SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Divergent tectonic plate boundaries such as mid-ocean ridges and continental rifts
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Anywhere there are slopes
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Areas with limestone formations and water flowing underground
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Near tectonic plate boundaries involving subduction, such as the Pacific’s Ring of Fire
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Detailed explanation-1: -karst, terrain usually characterized by barren, rocky ground, caves, sinkholes, underground rivers, and the absence of surface streams and lakes. It results from the excavating effects of underground water on massive soluble limestone.
Detailed explanation-2: -Sinkholes are most common in what geologists call, “karst terrain.” These are regions where the types of rock below the land surface can naturally be dissolved by groundwater circulating through them. Soluble rocks include salt beds and domes, gypsum, limestone and other carbonate rock.
Detailed explanation-3: -As the limestone dissolves, pores and cracks are enlarged and carry even more acidic water. Sinkholes are formed when the land surface above collapses or sinks into the cavities or when surface material is carried downward into the voids.
Detailed explanation-4: -Sinkholes are most common in what geologists call “karst terrain.” These are regions where rock types below the land surface can dissolve naturally by groundwater circulating through them. Soluble rocks include salt deposits and domes, gypsum, limestone, and other carbonate rocks.
Detailed explanation-5: -Solution sinkholes occur in areas where limestone is exposed at land surface or also is covered by thin layers of soil and permeable sand.