What is thr definition of root?

Root: the bottom part of a plant that attaches itself to the ground and gather water and nutrients

The Hundred Year War

Explanation:

The Hundred Year War, which occurred between England, the major producer of wool, and France one of the major buyers of wool around the period of 1337 to 1453 was the major reason why there was a shortage of wool in Europe during the 1300s.

During this period the Hundred Year War caused many farmlands to be destroyed, affecting plants and sheep rearing, a lot of people died, thereby causing the population of people to be affected

Also, these led to famine, and constant marauding happening in the countryside. All of which affect the production of Wool in the 1300s.