I want to know the answer to the following question:
In addition to being used to build things, what has wood been used for over thousands of years?
All the background I'm provided with is that "Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs.[citation needed]". Is that enough to answer the question?
Answer: no