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Which of the following is not a principal approach under ex-situ techniques?

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in Environmental Biotechnology by (64.7k points)
Which of the following is not a principal approach under ex-situ techniques?

(a) Soil banking

(b) Soil slurry bioreactors

(c) Land farming

(d) Bio-sparging

The question was asked at a job interview.

My doubt is from Problem Soil Management & Remediation in section Management and Remediation of Problem Soil of Environmental Biotechnology

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The correct answer is (d) Bio-sparging

The explanation is: Soil banking, Soil slurry bioreactors and Land farming are the common techniques used under ex-situ approaches whereas Bio-sparging is an In-situ technique.

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