Which of the following is not a process of biological restoration?

مندرجہ ذیل میں سے کون سا حیاتیاتی بحالی کا عمل نہیں ہے؟

Accumulation of heavy metals by organisms

Detoxification of pollutants from environment

Change in structure of site

None of these

Biological restoration focuses on processes like detoxifying pollutants, nutrient addition, and bioaccumulation.

Structural changes to the site are more related to physical or mechanical restoration, not biological.