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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