A natural bridge in karst may form by which process?
Answer and explanation
Correct answer: Partial survival of a cave roof while surrounding parts erode or collapse
A karst natural bridge is a resistant remnant of limestone or cave roof left standing after solution, erosion, and collapse remove nearby material. Underground drainage enlarges cavities, and sections of the roof may collapse while a stronger part remains as a bridge. Thus option A is correct. A sand bar, esker, and natural levee are respectively coastal, glacial, and fluvial depositional features.
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What is the correct answer to this question?
Partial survival of a cave roof while surrounding parts erode or collapse
Why is this the correct answer?
A karst natural bridge is a resistant remnant of limestone or cave roof left standing after solution, erosion, and collapse remove nearby material. Underground drainage enlarges cavities, and sections of the roof may collapse while a stronger part remains as a bridge. Thus option A is correct. A sand bar, esker, and natural levee are respectively coastal, glacial, and fluvial depositional features.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Trial Balance and Rectification of Errors.
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