Final answer:
The author uses the production and ultimate use of a chainsaw to describe the importance of sustainable forestry practices.
Step-by-step explanation:
The author uses the production and ultimate use of a chainsaw to describe the importance of sustainable forestry practices. Sustainable forestry practices involve managing forests in a way that ensures the long-term health and productivity of the ecosystem, while also meeting the needs of the present and future generations.
By highlighting the production and use of a chainsaw in the context of logging, the author emphasizes the need for responsible forest management to preserve forest resources and maintain a sustainable supply of timber.