A sinkhole in a karst region is formed by which process?
Answer and explanation
Correct answer: Solution of limestone and roof collapse
A sinkhole is a depression formed in soluble rock, especially limestone. Slightly acidic rainwater and groundwater enter cracks, dissolve the limestone, and enlarge underground cavities. If the roof of a cavity becomes too weak, it collapses and produces a surface hollow. Thus option C is correct; the other choices describe glacial, wind, or river-depositional actions.
Frequently asked questions
What is the correct answer to this question?
Solution of limestone and roof collapse
Why is this the correct answer?
A sinkhole is a depression formed in soluble rock, especially limestone. Slightly acidic rainwater and groundwater enter cracks, dissolve the limestone, and enlarge underground cavities. If the roof of a cavity becomes too weak, it collapses and produces a surface hollow. Thus option C is correct; the other choices describe glacial, wind, or river-depositional actions.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Financial Statements I. Topic: Revenue and Expenses.
