In a parabolic dune, the horns point in which wind-related direction?
Answer and explanation
Correct answer: Upwind direction
In a parabolic dune, vegetation commonly anchors the arms or horns while the sandy centre moves downwind. Because the anchored arms trail less than the mobile centre, they extend toward the wind source, or upwind. Thus option C is correct. This contrasts with a typical barchan, whose horns point downwind because its horns are more mobile than the central slip face. Sea and river directions are irrelevant.
Frequently asked questions
What is the correct answer to this question?
Upwind direction
Why is this the correct answer?
In a parabolic dune, vegetation commonly anchors the arms or horns while the sandy centre moves downwind. Because the anchored arms trail less than the mobile centre, they extend toward the wind source, or upwind. Thus option C is correct. This contrasts with a typical barchan, whose horns point downwind because its horns are more mobile than the central slip face. Sea and river directions are irrelevant.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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