What allows the grasses in a tall grass prairie to grow so tall compared with the grasses in a short grass prairie ?

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What produces wave a)sound b) heats c)transfer of energy d)vibrations

Which of the following words describe the reality that the universe looks the same from various perspective