The drug is most likely going to be tobacco, it is well known that if you smoke one of the side effects is respiratory issues
Preservatives are added to foods to help prevent or slow spoilage due to bacteria, molds, fungi or yeast, as well as to slow or prevent changes in the food's color, flavor or texture, delay rancidity, and maintain freshness.
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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 and Explanation:
Sports Definition: balance is the ability to stay upright or stay in control of body movement, and coordination is the ability to move two or more body parts under control, smoothly and efficiently. There are two types of balance: static and dynamic.
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Explanation:
How does being the oldest, middle, or youngest sibling in your family influence your personality? Open-ended
Under what circumstances would you disobey an authority figure? Open-ended
How could our school increase student morale? Open-ended
Is homework always worthwhile? Close-ended
Do people pay too much attention to celebrities? Close-ended
Would you ever change places with someone else? Close-ended
Open-ended are questions that require you to produce your own answer rather than just answer true or false or yes or no.
Close ended questions require you to just answer with given answers such as a. b. c. d., true/false etc.
