A lamb’s thick winter coat keeps it warm during the cold winter months. When the summer brings sunny days, the sheep doesn’t need its thick coat and the sheep’s wool is sheared. That wool is made into yarn, further processed, and then transformed into sweaters, socks, pants, skirts, and blankets.

The verb “transformed” referred to in the passage suggests that the wool changes by

mechanical or chemical operations.

Explanation

If you are taking yarn, processing it, and then turning it into clothing, it is clear that this is a mechanical operation.

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