101.
Ranikhet' disease concerned with
A
Cattles
B
Cats
C
Poultry
D
Silk moth
Answer :
Poultry
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102.
Fish used in biological control of mosquito is
A
Gambusia
B
Hilsa hilsa
C
Scalophagus
D
Gold Fish
Answer :
Gambusia
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103.
Which statement is correct
A
A. Indica is largest wild honey bee
B
Wax is waste material of honey bee
C
V. Frish discovered the transmission methods in honey bee
D
Drone of honey bee is diploid
Answer :
V. Frish discovered the transmission methods in honey bee
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104.
Worker Bees are
A
Fertile males
B
Fertile females
C
Sterile females
D
Sterile males
Answer :
Sterile females
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105.
An important step in the manufacture of pulp for paper industry from the woody tissues of plants is the
A
Removal of water from the wood by prolonged heating at approximately 50oC
B
Treatment of wood with chemicals that break down cellulose
C
Removal of oils present in the wood by treatment with suitable chemicals
D
Preparation of pure cellulose by removing lignin
Answer :
Preparation of pure cellulose by removing lignin
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106.
Largest newsprint paper industry is located at
A
Delhi
B
Nepanagar
C
Mysore
D
Luknow
Answer :
Nepanagar
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107.
Teak wood is obtained from
A
Tectona grandis
B
Dal;bergia sissoo
C
Butea monosperma
D
Pinus roxburghii
Answer :
Tectona grandis
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108.
Tassar silk is obtained from
A
Antheraea roylei
B
Bombax mori
C
Apis indica
D
Apis dorsata
Answer :
Antheraea roylei
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109.
Honey is collected by
A
Wasp
B
Housefly
C
Butterfly
D
Bee
Answer :
Bee
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110.
Three crops that contribute maximum to global food grain production are
A
Wheat, rice and maize
B
Wheat, rice and barley
C
Wheat, maize and sorghum
D
Rice, maize and sorghum
Answer :
Wheat, rice and maize
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