Burkina faso represents a nation in which
a. there is a strong middle class, allowing women to marry later, find employment and have small families.
b. long life spans have produced a large elderly population, supported by good social services.
c. many women are illiterate, marry early and have large families, partly because the infant mortality rate is very high.
d. medical facilities are excellent, and women are having fewer children because infant mortality has dropped dramatically.

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

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: