A strain is a twist, pull, and/or tear of a muscle and/or tendon. It usually results in being removed from the activity and possibly placed in the nurse's office. Hope that helped.
I think the answer is D. A and B.
The average adult usually watches over 33 hours of television a week!
State
After doing some research (as I am taking the OSHA Workplace Violence Assessment right now- XD) I found this:
Additionally, if your state imposes standards on workplace safety issues that OSHA's federal standards do not, you will need to comply with those state standards to avoid state enforcement action.
http://info.ergoscience.com/employer-blog/but-they-said...-who-says-what-your-osha-requirements-are
The answer should be State. Since OSHA isn't a national requirement, the state has more power. 22 States are OSHA-approved, but that doesn't mean it's required. Therefore, the answer should be state.
It deals with the heart blood and how the lungs fill the cells with oxygen for blood
