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What is 1 + 3?
Exploring Our World(ch3-1)vocab.
Vocabulary for Exploring Our World Chapter 3, Lesson 1 Vocabulary
the number of deaths per year for every 1,000 people
the number of children born each year for every 1,000 people
the average number of people living in a square mile or kilometer
the growth of cities
leave the country where one is born and move to another
people who are forced to flee to another country to escape wars, persecution, and disasters
a severe lack of food