The process of separating cotton fibres from seeds in harvested cotton bolls is known as:
Ginning
After cotton bolls are harvested, the fibres are still attached to the seeds and must be separated before spinning.
This separation of cotton fibres from seeds is carried out by a process called ginning, traditionally done using a cotton gin.
Retting refers to separating fibres from stems (as in jute or flax), scouring refers to washing raw wool to remove grease, and carding refers to combing and aligning fibres before spinning, none of which describes seed separation in cotton.
Hence, the correct answer is ginning.
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