Is reagan’s statement that tragedies like the challenger explosion "" all part of the process of exploration and discovery"" valid? what types of evidence does reagan provide to support this idea? what types of evidence does he not address?

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:

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.

they gained control over the philippines, east dutch indies/indonesia, much of new guinea, the solomon islands, guam, and other strategic areas all over the western pacific. japan even occupied part of the aleutian islands, which belonged to alaska.

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