Yes.
yes
First of all, you shouldnt be lifting heavy things what so ever!! So might as well not lift anything heavy unless you want to hurt your baby.
Because an ice pick is sharp and heavy
not necessarily but most large objects which are hard and drop them you could hurt yourself
It depends on the cause of the injury. If, for example you slip on a just-mopped, wet floor and bust your behind, and there was no warning that it was wet, then the company might be liable for your medical expenses because of their negligence. But, if you are lifting heavy objects as part of your job and you hurt your back, that would be covered under Workman's Compensation.
Less surface area contacting the ground reduces friction. Wheels are useful for moving heavy objects so you don't hurt your back.
Yes, because a lot of the force is being exerted on the piece of string that you are holding. If you distribute the force by lifting it with arms underneath, it will hurt less
You might get hurt, or they might get hurt.
Depends on how much you work out. 30 mins is good but that is without lifting heavy or very heavy weights because it could damage your muscles and it could hurt your bones and you could pull a muscle.
Make sure you are not stressed , find out if you are pregnate ... If you are or not sure dont let your self become stressed avoid being hurt or lifting anything heavy see doctor for more details
If a heavy motion of swinging occurs in the chair it is possible to tip backwards and hurt yourself, hence it is unsafe if not used correctly.
Because teenagers are still growing and lifting weights can stop their growth. If you start bodybuilding, then be careful and consult a doctor when you feel something is not right. Don't hurt yourself.