After reading the paragraph below, answer the questions that follow.
Plants are sometimes used for phytoremediation in areas where the soil has been contaminated with heavy metals. Suppose the Acme Remediation Company is proposing to remediate a contaminated area that you wish to restore. Acme presents you with the following data as evidence of their company's ability to remediate soil.
To decide if you want Acme to remediate the contaminated area, which question should you ask Acme about conclusions to be drawn from these data?
◦ What levels of heavy metals did it begin with to demonstrate the effectiveness of remediation?
◦ Since even the control plots lost metals, do I really need to remediate?
◦ What unit of measurement was used to determine how much metal was in the soil?
◦ Since lead (Pb) is not a micronutrient for plants, how do the plants remove it?
Plants
Plants
Plants
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