Which of the following is a salt

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

Why does his teacher ask him to balance the equation by including the correct coefficient