Which statement about pesticide storage facilities is true?

The statement regarding the careful consideration of the terrain when selecting a storage site is valid because the terrain can significantly impact the safety and effectiveness of pesticide storage. For instance, selecting a location with good drainage can prevent water accumulation around the storage facility that could lead to contamination or rusting of containers. Furthermore, stability in terms of soil and geography helps in safeguarding against structural risks, such as landslides or flooding, which can pose safety hazards and increase the risk of pesticide spillage.

Proper terrain assessment ensures that the facility can maintain both structural integrity and compliance with regulations concerning environmental protection and safety. This consideration extends to ensuring that the location does not pose risks of contamination to nearby water sources or habitats. Hence, the correct answer highlights an essential aspect of responsible pesticide storage management.