What is the primary advantage of a helical gear over a spur gear?
The primary advantage of helical gears over spur gears lies in their ability to transmit power more smoothly and quietly due to the gradual engagement of their angled teeth.
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What is the primary function of dietary fiber in human digestion?
Dietary fiber, an indigestible carbohydrate primarily found in plant-based foods, plays a crucial role in human digestion by adding bulk to stool and promoting regular bowel movements, thereby supporting overall gut health.
Which vitamin is primarily synthesized in the skin upon exposure to sunlight?
Vitamin D is the crucial nutrient primarily synthesized in the human skin when exposed to ultraviolet B (UVB) rays from sunlight, playing a vital role in calcium absorption and overall health.