Final answer:
The Electronic Flight Attendant Panel (EFAP) in an aircraft always indicates a higher need for water than waste. Water is continuously needed on flights for a variety of uses, while excess waste can present disposal challenges.
Step-by-step explanation:
The EFAP, or Electronic Flight Attendant Panel, is a device used on aircraft for various monitoring functions, including water and waste management. When it comes to balancing resources on the water and waste screen, the aircraft always requires more water than waste. This is because fresh water is needed on a continuous basis for various needs during the flight such as drinking, hand washing, and flushing toilets. Excess waste, on the other hand, can cause storage and disposal issues, so it is preferable to have less waste as compared to water.
Learn more about EFAP