141. Pasteurization of milk involve heating for

A 60 minutes at about $${90^ \circ }C$$
B 30 minutes at about $${50^ \circ }C$$
C 30 minutes at about $${65^ \circ }C$$
D 60 minutes at $${100^ \circ }C$$
Answer :   30 minutes at about $${65^ \circ }C$$
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142. Which one of the following pesticides is banned now-a-days

A DDT
B Eldrin
C Aldrin
D Toxaphene
Answer :   DDT
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143. "Hing" got from Ferula asafetida is

A Resinous exudates of root
B Fruits
C Inflorescence
D Leaves
Answer :   Resinous exudates of root
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144. Which of the following bacterium is associated with production of bioinsecticide is

A Bacillus subtilis
B Bacillus thuringensis
C Agrobacterium
D Azotobactor
Answer :   Bacillus thuringensis
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145. Hevea is a source of

A Soft fibre
B Strong fibre
C Soft drink
D Best rubber
Answer :   Best rubber
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146. Saffron is obtained from

A Styles and stigmas of Crocus
B Stamens of Hibiscus
C Petals of Hibiscus
D Stamens of Crocus
Answer :   Styles and stigmas of Crocus
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147. Wheat are placed in

A Millets
B Cereals
C Pulses
D Oil seeds
Answer :   Cereals
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148. Green manuring increases crop yield by

A 5 - 10 %
B 80 - 90 %
C 10 - 20 %
D 30 - 50 %
Answer :   30 - 50 %
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149. In tissue culture medium, the embryoids formed from pollen grains is due to

A cellular totipotency
B organogenesis
C double fertilization
D test - tube culture
Answer :   cellular totipotency
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150. The main source of food and fooder is

A Lichen
B Cereals
C Fungus
D Cotton
Answer :   Cereals
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