21. Which of the following is a microbial pesticide

A Rotenone
B Thurioside
C Baygon
D Temic
Answer :   Thurioside
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22. The long-term prospects for a truly human civilization depend in a large measure on

A the ability of humanity to moderate its fecundity
B increasing the food production
C colonization of underpopulated areas
D control of human diseases
Answer :   control of human diseases
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23. Which of the following is the pair of biofertilizers

A Azolla and BGA
B Nostoc and legume
C Rhizobium and grasses
D Salmonella & E. coli
Answer :   Azolla and BGA
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24. Embryoid is

A Non zygotic embryo
B Non functional embryo
C Zygotic embryo
D New variety or embryo
Answer :   Non zygotic embryo
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25. Microbial insecticide is

A Baillus polymixa
B Bacillus brevis
C Baillus subtilio
D Baillus thuringenesis
Answer :   Baillus thuringenesis
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26. Triticale, the first man-made cereal crop, has been obtained by crossing wheat with

A pearl millet
B sugarcane
C barley
D rye
Answer :   rye
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27. A plant cultivated mainly for oil is

A Rose
B Groundnut
C Marigold
D Sunflower
Answer :   Sunflower
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28. Fibre crop occupying maximum area in India is

A Jute
B Cotton
C Flax
D Sisal
Answer :   Cotton
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29. All of the following is a part of IPM (Integrated Pest Management) except

A Use of resistant varieties
B Use of crop rotation
C Biological & Mechanical control of pests
D Regular use of high does of pesticides from begning to end of the crop
Answer :   Regular use of high does of pesticides from begning to end of the crop
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30. The respiratory organs of silkworm is

A Lungs
B Tracheae
C Malpighian tubles
D Skin
Answer :   Malpighian tubles
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