The correct option is D All of the above
Some of the methods to control soil pollution are
a. The use of chemical fertilizers has to be reduced or minimised.
b. Reforestation is the process of replanting the entire forest with the same type of plant it had before.
c. The 3 R's principle-reduce, reuse, recycle: That is, reduce and reuse the non-biodegradable materials and recycle plastics.