Final answer:
To maintain food safety, food workers should seal outdoor dumpsters tightly to deter pests.
Step-by-step explanation:
To deter pests from outdoor dumpsters and maintain food safety, it is important for food workers to seal the dumpsters tightly. This prevents pests like rodents, flies, and insects from accessing the food waste and potentially contaminating the surrounding area.
Leaving lids partially open would actually attract pests and defeat the purpose. Spraying pesticides inside the dumpsters is unnecessary and may pose health risks. Similarly, placing food waste directly on the ground would attract pests and compromise food safety.