President Truman's major justification for using the atomic bomb against Japan was that he believed
it would keep Russia from taking Japan.
it would avenge Japanese atrocities.
it would save American lives
it would save the taxpayers a lot of money.

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:

d) true or false question

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