Answer:
McDonald's is credit for the assembly line sysyem.
It is use by Eye Care Professionals To check the eyesight of a person.
If u would have visited a eye care centre u would have noticed a chart like this--
If a person can see all the letters from a distance his eyesight is Perfect.If that person misses a letter or a line from the grid eye treatment or spectacles are given to the person for improving their eyesight
Signs of positive emotional well being
Reduce anxiety
You should wash your hands Before putting on disposable gloves. Washing our hands properly can help prevent the spread of the germs (like bacteria and viruses) that can cause diseases such as: gastrointestinal infections, Salmonella, and respiratory infections such as influenza.
I believe the answers are B,C, and D. All of them do not involve speaking however keeping a journal isn't communicating with another person. <span />