How did fabric merchants use magnifying lenses?

Merchants used magnifying lenses to count the threads in woven linen cloth. In 1654, Leeuwenhoek returned to Delft and opened his own business as a fabric salesman. With his microscopes, Leeuwenhoek observed bacteria, protozoa, ant pupae, and many other tiny organisms.

Explanation:

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Most likely to find the thread count of the fabric or cloth.

Explanation:

A higher thread count indicates a softer material, meaning they can charge more for it because people will be willing to pay more for a more comfortable material. A lower thread count indicates a coarser or rougher material, which is more durable but is not as comfortable. People will likely be less willing to pay a higher price for it.

there is no picture just let me know what it is and i can you tho : ) mark me the brainliest ? have a good day