Answer:
3-6 feet
Explanation:
The cough produced by the humans can contain about 3,000 droplets of human saliva at the time of the expulsion of the cough from the mouth at a speed of 50 miles per hour.
The sneezing is even worse and produces about 40,000 droplets of saliva with a speed of 200 miles per hour is expelled out of the mouth and nose.
Therefore it is suggested that the person should stand 3 to 6 feet away from the person who is coughing and sneezing as the droplets of saliva settles at about 3 to 6 feet.
Thus, 3 to 6 feet is the correct answer.
D
According to ncbi the most abundant mineral in the human body makes up about 1.5 to 2% of total body weight, I think that answers your question
