Final answer:
Pest control involves managing pests to minimize harm. Sanitary design ensures cleanliness and food safety. An air gap prevents contamination of water sources.
Step-by-step explanation:
Pest control: The term 'pest control' refers to the management and elimination of pests that can cause harm or damage to humans, animals, or the environment. This involves using various methods such as biological control, chemical control, and cultural control.
Sanitary design: Sanitary design is a concept that focuses on the design and construction of equipment, facilities, and processes in a way that promotes cleanliness, prevents contamination, and ensures food safety. It is especially important in industries such as food processing and healthcare.
Air gap: An air gap is a physical separation between a water supply and a potential source of contamination, such as a drain or sewer. It prevents the backflow of contaminated water into the clean water supply, ensuring the safety of the water.
Cheese nachos: Cheese nachos are a popular snack made with tortilla chips and melted cheese. They are not directly related to the terms mentioned in the question.