A. Carbon, hydrogen
B. Carbon, hydrogen, nitrogen
C. Carbon, nitrogen and sulphur
D. Carbon, hydrogen, nitrogen

A. calcium cyanide, boric acid
B. Chlorine, nitrogen
C. Oxygen, sulfur
D. Phosphorus, chlorine

A. Acaricide
B. Nematicide
C. Nematicide
D. Mollusicide

A. Ovicide
B. Avicide
C. Pesticide
D. None of these

A. Dose
B. Active ingredient
C. Insert ingredient
D. Pesticide

A. Aphid
B. Jassid
C. Sugarcane borer
D. Pyrilla

A. Oligophagous parasites
B. Polyhagous parasites
C. Facultative parasites
D. Transitory parasites

A. Obligated Parasite
B. Facultative Parasite
C. Intermitted Parasite
D. Transitory Parasite

A. Permanent Parasite
B. Intermitttent Parasite
C. transitary Parasite
D. Obligate Parasite

A. Dragon flies, Aphid lions,
B. Trichograma species
C. Lady beetle, flower beetle
D. Dragonflies, Aphid lions, Lady bird beetle, flower beetle