Page 1 Question 1 (1 point)
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What is a subregion?
O regions divided into smaller parts
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canals and gateway passages
O embankments to control flooding
O smaller rivers that feed into larger rivers

demand is the need and oportunity to buy a given good or service.

its c not d   tell me if that´s correct

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: