Cellulose debris can be found in which of the following?

Cellulose debris is primarily made up of cellulose fibers, which are abundant in plant materials, including wood, paper, and related products. The correct choice identifies that cellulose debris can be found in wood left over in the subsurface area, cardboard, or any type of paper products. This is because these materials are derived from cellulose-rich sources, such as trees and plants, and they can degrade into cellulose debris over time.

In contrast, the other options suggest limitations that do not accurately reflect where cellulose debris can be found. For instance, stating that cellulose debris is only in old furniture would overlook its presence in other common sources such as cardboard and paper. Similarly, suggesting it is only in cardboard boxes or only in paper recyclables excludes other materials where cellulose debris could be present, such as wood waste from construction or landscaping. This comprehensive understanding of cellulose sources and types is essential for identifying where cellulose debris can occur.