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Phytoremediation: Nature's Solution to Environmental Problems

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Phytoremediation: Nature's Solution to Environmental Problems

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Questions and Answers

What is one of the advantages of phytoextraction compared to conventional methods?

Rapid uptake rate by roots

Metal bioavailability within the rhizosphere

Higher cost

Decreased amount of waste material up to 95% (correct)

Which process refers to the immobilization of contaminants in the soil through absorption and accumulation by roots?

Phytovolatilization

Phytotransformation

Phytoextraction

Phytostabilization (correct)

What is one disadvantage of phytostabilization as a remediation method?

Contaminants remain in the soil (correct)

Absence of mandatory monitoring

No disposal of hazardous material required

Effective in preserving ground and surface waters

Which method involves the breakdown of contaminants within the plant root zone by microbes flourishing in the rhizosphere?

Phytostimulation Signup and view all the answers

What is the main purpose of phytoremediation?

Using plants to reduce environmental problems without excavation Signup and view all the answers

Which of the following is NOT a mechanism of phytoremediation mentioned in the text?

Biodegradation Signup and view all the answers

What is the key role of hyperaccumulators in phytoextraction?

Mobilizing and accelerating contaminant uptake Signup and view all the answers

How does phytostabilization contribute to phytoremediation?

By stabilizing contaminants in the soil, preventing their spread Signup and view all the answers

In which part of plants does the uptake of contaminants primarily occur in phytoremediation?

Roots Signup and view all the answers

What distinguishes natural phytoextraction from assisted phytoextraction?

The involvement of chelating agents and microbes Signup and view all the answers