What kind of activity is pressing your palms against a wall with full force

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.

Who has least likely to be chosen as a mediator during a negotiation

What should you do if you might be suffering symptoms of a mental disorder