Ground water, the largest source of fresh water, is stored in bodies of rock and or sediment a. porosity
b. sediment
c. particles
d. aquifers

i dont even know what this means

An atom holds 7 electrons. use orbital notation to model the probable location of its electrons. an atom hold 22 electrons. use orbital notation to model the probable location of its electrons. an atom holds 17 electrons. use orbital notation to model the probable location of its electrons.