Which of the following statement/s is / are true with respect to earthworms?
(i) Earthworms loosen, mix and oxygenate the soil improving soil structure.
(ii) Earthworms play an important role in decomposition of organic matter.
(iii) Vermicompost is prepared using earthworms.
1
(i) and (ii)
2
(ii)
3
(i) and (iii)
4
(i), (ii) and (iii)