What evidence is there that the Navajo and Apache share a common ancestry

The Navajo and the Apache are closely related tribes, descended from a single group that scholars believe migrated from Canada. Both Navajo and Apache languages belong to a language family called "Athabaskan," which is also spoken by native peoples in Alaska and west-central Canada.

Explanation:i hope i was helpful

d. dr. francis collins

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.

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