What type of force does a backpack exert on the body’s back and hips?

A backpack exert compression on the body’s back and hips

Explanation:

Backpack can cause excessive strain in one's neck, back and shoulders if it is heavy and if it is worn for a long time. The weight's force can pull you backward. In order to compensate for the force we bend forward at the hips or arch our back and this causes the spine to compress unnaturally.

It puts pressure on them causing your back to hurt and to shift all the wheight on your hips

Explanation:

answer is b

  a   having low self-esteem

  b   having abusive family members

  c   having poor school attendance

  d   having friends who discuss gang life

living torture and being abused makes one not mind harming other people.

and also not being supported and abusing one turns one into this state.