Under what condition does a seif dune form?
Answer and explanation
Correct answer: Under the influence of two dominant wind directions
A seif, or longitudinal dune, is a long, narrow ridge of sand aligned broadly parallel to the resultant wind direction. It commonly develops where winds blow from two dominant directions, often seasonally, allowing sand to move along the ridge while the dune remains elongated. Option B is correct. Tides, karst solution, and glacier termini may create other landforms, but they do not explain this aeolian dune pattern.
Frequently asked questions
What is the correct answer to this question?
Under the influence of two dominant wind directions
Why is this the correct answer?
A seif, or longitudinal dune, is a long, narrow ridge of sand aligned broadly parallel to the resultant wind direction. It commonly develops where winds blow from two dominant directions, often seasonally, allowing sand to move along the ridge while the dune remains elongated. Option B is correct. Tides, karst solution, and glacier termini may create other landforms, but they do not explain this aeolian dune pattern.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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