Which statement about pesticide storage facilities is true?

The statement about carefully considering soil and land surface characteristics when selecting a storage site to prevent potential contamination of water sources is true. This consideration is crucial because the location of pesticide storage can significantly impact the environment and public health. Selecting a storage site with appropriate soil and land surface characteristics helps mitigate the risks of contamination in the event of spills or leaks, thereby protecting groundwater and surface water quality.

This aspect emphasizes the importance of environmental stewardship in pesticide management. It ensures that the potential harmful effects of pesticides are minimized by taking into account factors such as drainage, proximity to water bodies, and soil permeability, which can influence how contaminants might travel and impact surrounding ecosystems.

The other responses do not align with best practices in pesticide storage and handling. For instance, storing pesticides in a warm, airtight environment might create risks for chemical instability and degradation, while materials like carpeting or wood for flooring can absorb spills, complicating cleanup and increasing contamination risks. Additionally, not posting warning signs for a small, locked cabinet or closet misrepresents the necessity of maintaining clear safety communication regarding pesticide storage to prevent accidental poisoning or misuse.