What were some tools developed to prepare corn and different meals?

Calcula la concentracion de hidronio en la lluvia ácida si el ph es 4.35

Soy xavier de cuba. mi hijo pepe de 3 a? os es travieso. no quiere comer en la mesa. prefiere comer en el piso. yo le digo a pepe que < < that > > el monstruo < < monster > > está dentro de la casa. así < < that way/then > > pepe come en la mesa. based on the information in the text and what you learned from the lesson, what cultural practice is this text referring to?

Answer the following questions using 6 to 8 complete spanish sentences. what is your opinion of bullfighting? if you were in mexico or spain, would you attend a bullfight? why or why not? are you aware of any controversial traditions in your culture? how is that tradition similar to or different from the tradition of bullfighting?