Which of the following statements best describes the khmer empire? a. it was a nomadic empire that inhabited mesopotamia about 3,000 years ago. b. it was an advanced civilization that developed in south america around 100 ce. c. it developed the world’s largest pre-industrial city between 800 and 1431 ce . d. it was an empire of nomads who roamed the grasslands of northern asia.

The correct answer is C. It developed the world's largest pre-industrial city between 800 and 1431

Explanation:

The Khmer Empire was an empire in Southeast Asia from the 9th to the 15th century, this empire was especially recognized because of its capital Angkor which stood out due to its aesthetics, architecture, art, culture, and different belief systems that including multiple temples and monuments. Due to this from the golden age of the empire from the 9th to the 13th century Angkor was considered as the largest pre-industrial city or urban center, this considering industrial age began in the 18th century. This implies the Khmer Empire had the world's largest pre-industrial city (Angkor) between 800 and 1431.

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: