What is a likely consequence of not monitoring the CACS effectively during flight?

Not monitoring the Cabin Atmosphere Control System (CACS) effectively during flight can lead to decreased passenger comfort and safety. The CACS is responsible for maintaining a suitable environment within the aircraft cabin by regulating temperature, humidity, and air quality. If these parameters are not properly monitored and managed, it can result in uncomfortable conditions such as excessive heat or cold, poor air quality, or even altitude-related issues like hypoxia.

This, in turn, can affect the overall experience of the passengers, leading to discomfort or even health risks. Maintaining an optimal cabin environment is crucial for ensuring that passengers remain comfortable and safe throughout their flight, which is why effective monitoring of CACS is essential.