This event opened asian countries, particularly china, to trade with europe. opium wars industrial revolution military revolution the great famine
european nations were able to dominate other countries during the period of colonialism because they had larger armies they had superior communication, technology, and weapons they had a greater population they were more intelligent

The correct answer is A. Opium Wars

Explanation:

The Opium Wars were two conflicts between the Chinese empire and the British empire. The first one lasted between 1839 and 1842 and the second one took place between 1856 and 1860. The causes of these conflicts were the commercial interests created by the British illegal traffic of opium in India and China and the efforts of the Chinese government to impose laws and control that commerce.

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:

the governor can not veto a referendum that the voters approve