Group – A
Group – B
1) Biomagnification
D) Food chain
2) Soil erosion
F) Deforestation
3) Solid wastes
E) Burying the waste
4) Incineration
B) Expensive method
5) Cow dung
A) Methane
6) Bioremediation
C) Clean up contamination
7) Phytoremediation ...