Question 9 2 pts In 1970, the nation's population was 4 million and by 2020 it reached 8 million. It means the average population growth during this time period was: 1.8% 2.7% 1.4% 2.3% Question 8 2 pts Rapid population growth is the result of: O low death rate and low birth rate Low death rate and high birth rate High death rate and high birth rate O high death rate and low birth rate