Which of the following statements are true?

The correct answer is Transverse dunes are perpendicular to wind.

Key Points

• Transverse dunes are large, elongated dunes that form at right angles to the prevailing wind direction.
• These dunes are typically found in areas with a large supply of sand and consistent wind direction.
• The windward side of a transverse dune is gentle and slopes gradually, while the leeward side is steeper and has a slip face.
• Transverse dunes often form in desert regions where sand is abundant and vegetation is sparse.
• They can grow to significant heights and widths, spanning hundreds of meters in some cases.

 Additional Information

• Longitudinal dunes
  • Longitudinal dunes, also known as seif dunes, are long, narrow dunes that form parallel to the prevailing wind direction.
  • These dunes can be quite large and can extend for hundreds of kilometers.
  • The formation of longitudinal dunes requires a bidirectional wind regime.
• None of these
  • This option is incorrect as one of the given statements (option 2) accurately describes the nature of transverse dunes.