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 is the form of soil degradation by. the action of the wind which abrades, transports. and deposes soil / sand particles. These actions. depend mainly on the type of soil, the climate, the vegetation cover, the speed and frequency of. wind.