1)lacks of parenting that cause some1 to think they r not being loved
2)peer pressure
3)over thinking
4)not stable emotion
XD I hope that can help
Food is pushed through the digestive tract by muscle contractions called
<span>peristalsis.</span>
Answer:
. The need for a revision was felt as drastic procedures like abortions & surgeries became commonplace and medically valid, questioning a physician's morals anew.
Ergonomics<span> (or human factors) is the </span>scientific<span> discipline concerned with the understanding of interactions among humans and also other elements of a system, & the profession that applies theory, principles, data and methods to design in order to optimize human well-being and overall system performance.
Hope This Helps</span>
