In an ecosystem, material can be recycled. Which of the following material can cycle through this ecosystem?
A. water
B. Oxygen
C. Carbon
D. All of the above

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

Identify two types of chemical bonding in the source of dietary potassium