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Posts: 175
A month ago
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.




According to the data, this remediation plan is most effective with which element?

▸ copper (Cu)

▸ zinc (Zn)

▸ cadmium (Cd)

▸ lead (Pb)
Textbook 
Campbell Biology: Concepts and Connections
Edition: 8th
Authors:
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wrote...
A month ago
lead (Pb)
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A month ago
Thanks
Answer accepted by topic starter
wrote...
A month ago
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?
Answer verified by a subject expert
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Posts: 230
A month ago
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Since even the control plots lost metals, do I really need to remediate?
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Answer accepted by topic starter
wrote...
A month ago
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.




What likely caused the loss of metals in the control soil?

▸ being washed away by water draining through the soil

▸ buildup of humus

▸ evaporation of the metal molecules into the air

▸ absorption of the metal molecules by clay particles
Answer verified by a subject expert
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A month ago
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being washed away by water draining through the soil
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Related Topics
wrote...
A month ago
Thanks
Answer accepted by topic starter
wrote...
A month ago
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.




Which would provide the best evidence that Acme's phytoremediation really works?

▸ testimonials from former Acme customers

▸ a list of publications of the scientists that work at Acme

▸ a list of plant species that tolerate heavy metals

▸ data on heavy metal content of plants grown in normal soil versus soil contaminated with heavy metals
Answer verified by a subject expert
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Posts: 224
A month ago
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data on heavy metal content of plants grown in normal soil versus soil contaminated with heavy metals
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Answer accepted by topic starter
wrote...
A month ago
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.




The CEO of Acme Remediation Company is always trying to improve the company's effectiveness by keeping up with current research. Which research topic should have the highest priority for that research?

▸ comparison of plant species' tolerance of heavy metals in soils

▸ comparison of plant species' ability to live in dry versus moist soils

▸ comparison of plant species' tolerance of clay versus sandy soils

▸ comparison of plant species' bioaccumulation of metal ions
Answer verified by a subject expert
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A month ago
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comparison of plant species' bioaccumulation of metal ions
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A month ago
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