Final answer:
In woodworking, glue and nails should not be used to fix drawer bottoms to frames because it does not allow for wood expansion and contraction due to changes in humidity. Instead, drawer bottoms should fit into grooves to move naturally.
Step-by-step explanation:
The question addresses the subject matter related to woodworking, specifically best practices for constructing wooden drawers to account for environmental factors such as humidity. When building wooden drawers, it is not recommended to glue and nail the bottoms onto the drawer frames, as suggested in the question. Instead, a better practice is to allow for wood expansion and contraction due to humidity. Therefore, the bottoms of wooden drawers are typically designed to fit into grooves within the drawer sides and are often left unglued. This allows the wood to move naturally without causing the drawer to warp or become stuck.