How is a uvala formed?
Answer and explanation
Correct answer: By the coalescence of several dolines or sinkholes
A uvala is a large, irregular, closed depression found in a limestone karst region. Rainwater absorbs carbon dioxide, becomes weakly acidic, and dissolves limestone along joints and fractures. As several smaller dolines or sinkholes enlarge and merge, their intervening ridges disappear and a broader depression develops. Therefore, option D is correct; the other choices describe fluvial, coastal, or aeolian processes rather than karst solution.
Frequently asked questions
What is the correct answer to this question?
By the coalescence of several dolines or sinkholes
Why is this the correct answer?
A uvala is a large, irregular, closed depression found in a limestone karst region. Rainwater absorbs carbon dioxide, becomes weakly acidic, and dissolves limestone along joints and fractures. As several smaller dolines or sinkholes enlarge and merge, their intervening ridges disappear and a broader depression develops. Therefore, option D is correct; the other choices describe fluvial, coastal, or aeolian processes rather than karst solution.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
