Final answer:
Veterinary drugs should be stored carefully to prevent environmental contamination, considering that lipid-soluble residues typically bind to soil, while water-soluble residues may leach into water systems.
Step-by-step explanation:
Drugs specifically for veterinary use should be stored in a manner that prevents them from entering the environment and potentially causing harm to terrestrial organisms or aquatic systems. This includes ensuring that lipid-soluble pharma residues from veterinary drugs are prevented from leaching into the soil and potentially binding to soil particles, where they can remain without a significant tendency to migrate to groundwater or local surface waters.
Conversely, more water-soluble residues may be washed away more easily by rain or melting snow, potentially reaching and contaminating both ground water and surface water streams. Proper storage and disposal of veterinary pharmaceuticals are crucial for protecting the environment and preventing the adverse effects on ecology, such as the potential extinction of sensitive species like dung-beetles that can be exposed to these residues.