Question

Which of the following is/are the processes that affect the corrosion behavior of metals by biological activity?

(a) By influencing anodic and cathodic reactions

(b) By influencing protective surface films

(c) By producing deposits, by influencing anodic, cathodic reactions and protective surface films

(d) By creating non-corrosive conditions

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Answer 1

The correct answer is (c) By producing deposits, by influencing anodic, cathodic reactions and protective surface films

Explanation: The process that affects the corrosion behavior of metals by biological activity are:

i. By directly influencing anodic and cathodic reactions

ii. By influencing protective surface films

iii. By creating a corrosive environment

iv. By producing deposits.