1. What is the significance of the slope of the line ac in the top part of Figure 6.1?\n2. Given that there is a fixed supply of land in the world, wha
1. What is the significance of the slope of the line ac in the top part of Figure 6.1?
\r\n2. Given that there is a fixed supply of land in the world, what implications can you draw from Figure 6.1 about the effects of an increase in world population for food output per head?