Listening Quiz: Thuyết Trình Đánh Giá Các Phương Án Cải Tạo Đất – Medium Level

1. Which remediation option removes almost 100% of contaminants?
2. What does William say about bioremediation?
3. About how much of the contaminants does bioremediation remove?
4. Why does Linda ask about the second and third options?
5. What can be inferred about why William recommends chemical treatment?

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