(a) Although groundwater can be contaminated by arsenic from anthropogenic sources, contamination by natural processes have caused the most significant problems. Explain how arsenic results in contamination of the groundwater by natural processes.

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A: Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts at ...

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A: Since we only answer up to 1 question, we’ll answer the first question. Please resubmit the question...

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