How can the president lose his or her job before election ?

If they commit a serious crime like murder or tax evasion etc..

If the House passes the articles of impeachment, the Senate holds a trial to determine whether the president is guilty. If they decide that he is, they can remove him from office. That is the only way the president can lose his job.

the second industrial revolution occurred in the u.s. beginning in the and its colonial empire allowed its many technological innovations to spread although the american industrial revolution wouldn't take full effect