Castilian dialect, Spanish Castellano, a dialect of the Spanish language (q.v.), the basis of modern standard Spanish. Originally the local dialect of Cantabria in north central Spain, Castilian spread to Castile. After the merger of the kingdoms of Castile, Leon, and Aragon in the late 15th century, it became the standard language of all Spain and in the following centuries the language also of Spanish America.
Answer: sería imposible la vida en este planeta ya que los gases del aire son vitales para la vida en la Tierra. los seres humanos y los animales no pueden sobrevivir sin oxígeno y las plantas verdes no pueden sobrevivir sin dióxido de carbono.
