(a) Study Fig. 1.1, which shows information about birth rates and death rates in Mexico (an LEDC) between 1900 and 2060 (estimated). [Figure 1.1 depicts a line graph with Year (1900-2060) on the x-axis and birth and death rate (per 1000) on the y-axis, ranging from 0 to 60. Two lines are plotted: 'birth rate' and 'death rate'. The 'birth rate' starts around 35 in 1900, fluctuates, peaks around 48 in 1940, then generally declines to around 10 by 2060. The 'death rate' starts around 35 in 1900, declines to around 10 by 1970, then slowly rises to around 10-12 by 2060. The period after 2010 is marked as 'estimated'.] (b) Study Fig 1.2, which shows population pyramids of the structure of Mexico's population in 1980 and 2010. [Figure 1.2 displays two population pyramids, one for 1980 and one for 2010. Both pyramids show age groups (0-4 to 100+) on the y-axis, divided into male and female populations on the x-axis (population in millions, 0 to 6.0). Different age bands are labelled as 'young dependent' (0-14), 'economically active' (15-64), and 'old dependent' (65+).]