Answer:
Cloth mask aren't as affective to stop the spread of cov id 19 as a N95 but they still help
Hope This Helps!!!
Answer:
lght I'll help you with whatever you need if I know it of course
If you look it up, it will give you the approximate value of SA= 2205.4. I really don’t know if this is right because surface area is of a 3D object and area alone is for a 2D object. You may want to look up the proper formula.
Vitamin D helps strengthens bones which would prevent osteoporosis