Final answer:
A 110-pound package of "Aluminum phosphide" is regulated as a pesticide or fumigant.
Step-by-step explanation:
A 110-pound package of "Aluminum phosphide" is typically regulated as a pesticide or fumigant due to its use in controlling pests.
Aluminum phosphide releases phosphine gas, which is toxic to insects and small vertebrates, when it comes in contact with moisture. Due to its hazardous nature, it is subject to strict regulatory controls and must be handled with caution.