Answer:
Excess nitrogen can harm water bodies
Water is the only one of these that would work by process of elimination.
Answer:
I believe the answer is A
Explanation:
I hope this helps :)
Answer:
Explanation:
The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.