Please help me immediately please guys please my sir was give me homework​

When do most people who become addicted to tobacco start using it

If you are having a hard time lifting something, you should arch your back. a. true b. false

The real advantage to hydrostatic weighing is that it a. can be done anywhere with no equipment b. gives one of the most accurate measurements of body fat c. uses calipers to measure body fat select the best answer from the choices provided.