Degradation of organic wastes by using earth worms is called Vermicomposting

1.Which one is bottom dweller?
(a) Mrigal
(b) Catla
(c) Lamprey
(d) Dolphin
Answer: (a)

2.Which one is not a marine fish?
(a) Pomphret
(b) Sardine
(c) Catla
(d) Mackerel
Answer: (c)

3.Which one of the following is an economically important marine fish?
(a) Rohu
(b) Catla
(c) Hilsa
(d) Cyprinus
Answer: (c)

4.Which one of the following is not a fishing gear?
(a) Net trap
(b) Hook
(c) Seines
(d) Craft
Answer: (d)

5.Which one of the following is not a marine fish?
(a) Sardine
(b) Catla
(c) Mackerel
(d) Bombay Duck
Answer: (b)

6.Which one of the following is surface feeder?
(a) Dolphin
(b) Catla
(c) Hog fish
(d) Shark
Answer: (b)

7.Worm castings are rich in
(a) Nitrogen
(b) Phosphorus
(c) Calcium and others
(d) All the above
Answer: (d)

8.Some commonly used earth worm species
(a) Eisenia fetida
(b) Perionix excavatus
(c) both (a) and (b) are correct
(d) neither (a) nor (b) is correct
Answer: (c)

9.Degradation of organic wastes by using earth worms is called
(a) Vermicomposting
(b) Compost bedding
(c) Humus
(d) none of the above
Answer: (a)

10.The vermicompost is ____ in colour.
(a) red
(b) black
(c) white
(d) brown
Answer: (d)