A simple technology has been developed in India for plant breeders and farmers to use two plants as biofertilizers for growing rice. These are
Azotobacter and Rhizobium
Chlorella and Spirulina
Azolla and nitrogen fixing blue-green algae
Riccia and Marchantia
Which of the following micro-organism is used for conversion of milk into curd?
Xanthomonas citri
Bacillus megatherium
Acetobacter aceti
None of the above
Which of the following is the product of glucose fermentation by yeast?
C6H12O6
C2H5OH
(C6H10O5)n
CH2OH
The pesticide used as preventive measure in buildings is :
aldrin
dieldrin
endrin
DDT
A.
aldrin
Aldrin is a pesticide used to control soil insects such as termites, grasshoppers etc. It has been widely used to protect crops such as corn and potatoes. It is used as a preventive measure in buildings to prevent attack of termites. It is a chlorinated hydrocarbon or organochlorine.
Curdling of milk in small intestine occurs due to the action of
rennin
erypsine
trypsin
chymotrypsin
Which of the following pesticides is an acetylcholinesterase inhibitor?
Aldrin
BHC
Endosulfan
Malathion