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  1. the action of abrasion can best be described as

Awindblown sand cutting and polishing exposed rock surfaces
Bcoarse sand particles rolling along the desert surface
Csand being blown high into the air to cut and carve rock formations
Dthe wind creating desert pavement

  1. sand dunes that form scalloped rows of sand at right angles to the wind are called

Astar dunes
Bparabolic dunes
Ctransverse dunes
Dbarchanoid dunes

Verified Answer :

A. windblown sand cutting and polishing exposed rock surfaces is the answer

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The action of abrasion can best be described as
windblown sand cutting and polishing exposed rock surfaces
. Correct answer:A A rock undergoes abrasion when particles of sand or small pieces of rock are carried across its surface by a glacier, stream, or the wind.Gravity causes abrasion as a rock tumbles down a slope. Sand dunes that form scalloped rows of sand at right angles to the wind are called Barchanoid dunes. Correct answer: D Barchanoid dunes are formed from long sand ridges oriented at right angles to the wind.


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