Final answer:
It is false that one should wear dark colors when exercising in hot and humid weather. Loose-fitting white clothing, which reflects sunlight and allows sweat to evaporate, is ideal for staying cool in such environments and also provides warmth during cold desert nights.(false)
Step-by-step explanation:
The statement that you should wear dark colors when exercising in hot and humid weather is false. Wearing loose-fitting white clothing is actually more beneficial in such conditions.
White clothing reflects sunlight, which helps keep the body cooler during the day in hot climates. Moreover, loose clothing allows for better air circulation around the skin, which aids in the evaporation of sweat for cooling.
This is especially important because, in a humid environment, the high concentration of water in the atmosphere means that sweat evaporates more slowly from the skin's surface. At night, the same loose, white clothing that helped reflect the sun's heat can help retain some body heat, as desert temperatures can drop significantly after sunset.