When the skin is exposed to ultraviolet rays, the skin produces a molecule that is turned into Vitamin D.
Sun is the source of ultraviolet rays important for Vitamin D production. Due to this reason, in the case of Vitamin D deficiency, it is recommended by doctor's to absorb sunlight by skin. The Vitamin D production occurs specifically by UV B rays rays which lie in the range of 290-315 nanometer.
The chemical 7-dehydrocholesterol absorbs these rays and convert to previtamin D3. Further, previtamin D3 isomerizes to Vitamin D. Other than sunlight, Vitamin D can be taken through diet. The sources include seafood like fish, fish oil, dairy products, beef liver etc. Vitamin D is required for bone and teeth formation, muscle contraction, immune system etc.
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Answer:
*Should someone be poisoned from water
Explanation:
Answer: See explanation
Explanation:
• Stability: this is defined as the ability of a certain body to go back to its original position or equilibrium when such body is displaced.
• Maximum Effort: This is the use of maximum force towards accomplishing a particular objective e.g lifting of weight.
• Maximum Velocity: Thus is the maximum speed that a certain body uses to move in a particular direction. We should note that when there's maximum speed, there's acceleration is zero.
• Impluse: It is the effect of a force that acts over time.
• Reaction:
• Torque: It is the rate of change that occurs in the angular momentum of a certain object.
• Angular Momentum: It measures the rotational momentum that occurs in a system.
Because <span>Pathogens from toilet services can be transferred from toilet to hands or bucket or other services.</span>
