1 Insertion â when a base is added to the sequence. 2  Deletion â when a base is deleted from the sequence.  Copy number variation (CNV) is a type of mutation where large chunks of DNA are inserted, repeated or lost. These regions of DNA can be between 10,000 and 5,000,000 bases long.
Wind deposition can result in dunes and loess deposits.
Wind Erosion. Wind erosion is the main source of erosion in areas with arid climates. This can occur in two main ways: deflation and abrasion. Deflation moves particulates (dust) from one area to another. Abrasion occurs when the moving particulates come in contact with solid object. Wind Erosion Control: Control erosion created by wind is no easy task.