Which shows a president's involvement in the civic life

The correct answer is B) throwing the first pitch in a base ball game.

The other options of the question were A) giving the state of the union address. C) giving an interview to a TV station. D) Appointing an ambassador to a foreign country.

What shows a President's involvement in civic life is "throwing the first pitch in a base ball game."

That is how the President of the United States shows the American citizens that he is as "an American," as everybody is, doing what "any American" does as part of his normal life. He shows that he is close to the people and he takes care of the ordinary things people do.

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: