Final answer:
The correct answer to the question on secondary corrosion concerns due to degraded water quality is D) All of the above, which includes lead leaching, zinc erosion, and iron oxidation.
Step-by-step explanation:
The secondary corrosion concerns for degraded water quality include lead leaching, zinc erosion, and iron oxidation. Therefore, the correct answer to the question is D) All of the above. Corrosion is a naturally occurring electrochemical process that leads to the degradation of metals. This process can have a variety of consequences depending on the metal in question. Lead leaching into water can occur from pipes and plumbing materials, posing health risks.
Zinc erosion can happen in galvanized pipes and structures, leading to weakened materials and potential structural failures. Iron oxidation, commonly known as rusting, causes significant damage to iron-based infrastructure and can compromise the integrity of buildings, bridges, and vehicles.