Describe the structure and indicate what errors are prese

Nonpoint source pollution is difficult to control because it

The fact that the total amount of energy in a system remains constant is a(n)

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.