Which of the following methods is not effective in treating soil polluted with heavy metals?
Phytoremediation
Bioremediation
Chemical immobilisation
Incineration
Incineration is not an effective method for treating soil polluted with heavy metals, as it can release the metals into the atmosphere. Phytoremediation involves using plants to absorb and remove pollutants, bioremediation uses microorganisms to break down contaminants, and chemical immobilisation involves binding the contaminants in the soil to reduce their mobility.