Why do we shake hands when we meet someone? do all people shake hands? who started this?
where did this unspoken rule come from?
is this rule universal or particular to your country or region?
what would happen if everyone suddenly stopped following this unspoken rule?
cite the sources you used for your research.

it brings together the military and civilian sectors of society to harness the total power of the nation. it is the mechanism that facilitates the successful prosecution of any conflict.it brings together the military and civilian sectors of society to harness the total power of the nation. it is the mechanism that facilitates the successful prosecution of any conflict.

answer; ///biological psychologists;

answer; role-taking;