How much water can the body lose when working under the hot Florida sun?

The correct choice indicates that the body can lose a quart of water per hour when working under the hot Florida sun. This loss occurs due to sweating, which is the body's primary mechanism for regulating temperature in hot environments. As physical activity increases, along with exposure to high temperatures, the rate of sweating also increases significantly.

Understanding that a quart of water loss can take place helps in emphasizing the importance of hydration during outdoor work, especially in climates like Florida's, where temperatures can be high and humidity levels can contribute to a rapid increase in sweat loss. Staying properly hydrated is crucial to prevent heat-related illnesses, which can arise from excessive fluid loss.

Monitoring fluid intake carefully to match the level of water loss is essential for maintaining healthy body function while engaged in strenuous activities under the sun.