How can we justify the conservation of energy using “system/surroundings” terminology for an open, closed, and isolated system?

Well, l think that some effective communication is, emotional barriers and lack of attention, interest distraction or irrelevance. also some physical disabilities such as hearing problems or speech difficulties.      l hope i am correct  and you good luck.

Only ten amendments were ratified by the states.

Answerbipolar disorder; i believe this is correct, plz check first;