Answer:
underestimate.
Explanation:
The reasons for rescue failure can be referred to by the mnemonic FAILURE. In this mnemonic the "U" stands for underestimate because underestimating the incident can lead to failure of rescue operation.Therefore in mnemonic FAILURE U stands for underestimate.
Stress has been found to make people go crazy mentally and physically. It can also cause numerous health problems. Stress is a sickness so to speak.
The esophagus, which passes food from the pharynx to the stomach, is about 25 cm(10 inches<span>) in length; the width varies from 1.5 to 2 cm (about 1 inch). The esophagus lies behind the trachea and heart and in front of the spinal column; it passes through the diaphragm before entering the stomach.</span>
