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    The correct order of wind erosion processes is
    Question

    The correct order of wind erosion processes is

    A.

    Surface creep, saltation, suspension

    B.

    Saltation, surface creep, suspension

    C.

    Suspension, surface creep, saltation

    D.

    Saltation, suspension, surface creep

    Correct option is B

    The correct answer is (B) Saltation, surface creep, suspension

    Explanation:
    • Wind erosion occurs in three distinct processes depending on the size of the soil particles.
    Saltation: Accounts for the bulk of wind erosion ($50-75\%$). It involves medium-sized particles (0.1 - 0.5 mm) that are lifted a short distance into the air and then fall back, bouncing along the surface.
    Surface Creep: Involves larger particles (0.5 - 2.0 mm) that are too heavy to be lifted. They are rolled or pushed along the surface by the impact of particles in saltation.
    Suspension: Involves very fine particles (less than 0.1 mm) that are lifted high into the atmosphere and can be carried thousands of miles. This forms "dust storms."
    • The order in terms of the quantity of soil moved is typically Saltation $>$ Surface Creep $>$ Suspension.

    Information Booster:
    • Saltation is the key process; without it, surface creep would hardly occur.
    • Shelterbelts (rows of trees) are effective because they reduce wind velocity below the threshold required to initiate saltation.
    • This classification was famously detailed by W.S. Chepil in the mid-20th century.

    Additional Knowledge:
    Option A: While these are the three processes, Saltation is usually listed first as it is the most significant in terms of mass transport.
    Suspension: While visually dramatic, it actually moves the least amount of total soil mass compared to saltation.

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