Final answer:
The screens for windows and doors of a dry storeroom should be tight-fitting and without holes to prevent pests and contaminants from entering while allowing light and air to circulate as necessary.
Step-by-step explanation:
The screens for windows and doors of a dry storeroom should meet the criteria of being tight-fitting and without holes. This is important to ensure that the storeroom remains free from pests and contaminants that could enter through gaps or tears.
The purpose of these screens is not only to let in light but also to provide a barrier that can control what enters or leaves the storeroom, much like properly functioning doors and windows in a house that keep out rain and unwanted critters while allowing light and air to enter as needed.