A sacrificial anode can be used to protect a metal like iron from corrosion. In order for this to work, the anode must be than the metal that it is protecting.

Timed ! in which of these statements are protons, electrons, and neutrons correctly compared? quarks are present in protons and neutrons but not in electrons. quarks are present in protons, neutrons, and electrons. quarks are present in neutrons and electrons but not in protons. quarks are present in protons and electrons but not in neutrons.