Which of the following statements about time zones is true? a. time zones are based on the days of the week. b. time zones sometimes follow the borders of countries. c. time zones’ boundaries are perfectly vertical lines (north to south). d. time zones’ boundaries are perfectly horizontal lines (east to west).

Which statement is an accurate description of life in mongolia in recent years? the majority of the population now lives in cities. after a brief period of democracy, communists regained control of the government. subsistence farming remains the primary economic activity in the country. relations between mongolia and china are now tense. -gradpoint