Construction of the Great Wall goes to which classical empire? the Gupta Empire
the Han Empire
the Aztec Empire
the Inca Empire
the Maya Empire

yes

explanation:

why

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:

hello,

the steamboat is your answer.

it seems like its the only form of transportation on the choices.

the right answer is d) a conference committee. it is a temporary panel formed by house and senate members in order to reconcile differences in legislation.