Answer:
Uno de los ejemplos de los problemas encontrados en el campo de la educación en geografía es el uso generalizado de los maestros de los métodos de enseñanza que se basan en explicar conceptos. Una de sus principales razones subyacentes es la sobrepoblación de las aulas y la capacitación conductual que los maestros recibieron anteriormente.
The Parthenon had a total of 69 columns. There were 46 outer columns and 23 inner columns.
C. The inner core is known to be made mostly of nickel and iron. However, since there is an outer core (which is the original one that's made out of nickel and iron), your answer might be D. But if you put it the 'core' in general, the right answer should be C.
That means: as the fire circle is created. I read it in a book before I hope that helps.