Answer:
1. español
2. mayor
3. las condiciones sociales de la gente indigena en sus país
Explanation:
1. What language do Mexicans speak, in addition to other indigenous languages? Mexicans speak Spanish.
2. How is the population of the D.F. compared to other cities? It is larger than other cities.
3. What were Frida Kahlo and Diego Rivera interested in? They were interested in the social conditions of the indigenous people in their country.