<span>Personal protective equipment is only helpful if regulations for using it are followed carefully. If it is not worn and used properly, then it will not function properly and it might not provide the protection that is needed in the situation. For example, a helmet is only effective if it is fitted properly and snugly on the head. Otherwise it could fall off in an accident and be rendered useless.</span>
Farm mechanization refers to the use of agricultural machines to take the place of manual labor on farms.
Answer:
Pressure is data on, well, pressure. Pain is data on damage being caused.
Answer: skull size of each species
Over time, it is the size of the skull particulary that of the jaw bones, that can help determine the evolutionary relationship of two hominid species. It was believed that the jaws of hominids change as time passes by because the size of the brains changes too.