Where does the biosphere get its energy? How much energy is coming into the biosphere? What amount?

Where is matter coming from that enters [this system]?​

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule