Answer:
1. Neck and Shoulder
2.arms and the back
3.A comfortable place to work
4.The study of people's efficiency in their working environment
5.A poor posture, Vibration, using too much force, frequent lifting
Answer is C.
Eat nutritious meals. This is a healthy goal that takes a short amount of time.
You can line them up by the sink tell them to wash their hands and sing them the handwashing song song.
Our lung capacity naturally starts to decrease at the age of 30. By the time we reach 50, it could be decreased by half. I'm not sure about when we reach 90 though. Hope this helps! :)
