Answer:
Some things to consider: safety, Money, and specific muscles you want to work.
Explanation:
Free weights cost less money. People have used free weights on a weight bench and have not used a spotter. The free weights have fallen on them and killed them. A universal machine is more expensive. You can not drop a universal machine on yourself. The machine's aslo require little to no maintenance. A machine will basically always hit certain muscles, not due to you but down to how the machine is made. However free weights allow you to hit a larger variety of muscles as it's not isolated.
The birth rate is also referred to as population rate and the death rate is also known as mortality rate.
Hope this helps! :)
B) Decrease lung capacity, however if A is increase chance of injury and not increase Change of injury as the question is phrased then it would be A
Marijuana:
Seventh graders should know that the drug is the least harmful drug ever. Marijuana has caused no deaths and yet is illegal in many places. It has no horrible effects to your body and brain like other ecstasy and cocaine. Alcohol is more dangerous and has caused more deaths than marijuana and its legal why can't marijuana be too since its way less dangerous?!