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]?​

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

Fred is studying a substance that is made out of only one element. this means that

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane