Beginning in 1980, Brazil built a highway that connected the highly populated cities of Rio De Janeiro and Sao Paulo in the southern portion of the country with the Amazon rainforest in the northern part of the country. Between 1980 and 1990, 200,000 people migrated to the Amazon where they cleared forests via slash-and-burn techniques to grow subsistence crops to survive. According to Thomas Rudel and Jill Roper, this is an example of? Question 4 options: The immiseration model of population growth The frontier model of population growth The tragedy of the commons The environmental Kuznets curve