MCQs on Vermicomposting Q. Which of the following chemicals is used for protecting vermi-bed from ants? (a) DDT (b) Griseofulvin (c) Chloramphenicol (d) Chlorpyriophosphate Sol.(d) Chlorpyriophosphate. Q. Which of the following is a commonly used earthworm species for the vermicomposting process? (a) Eisenia fetida (b) Perionix excavatus (c) Both (a) …