Biology Microbes Biofertilizers Online Exam Quiz
Biology Microbes Biofertilizers GK Quiz. Question and Answers related to Biology Microbes Biofertilizers. MCQ (Multiple Choice Questions with answers about Biology Microbes Biofertilizers
Which of the following is an aerobic nitrogen-fixing bacterium?
Options
A : Azotobacter
B : Clostridium
C : Rhodospirillum
D : Rhodopseudomonas
Which of the following is not a free-living Nitrogen-fixing bacteria?
Options
A : Azotobacter
B : Clostridium
C : Klebsiella
D : Xanthomonas
Which of the following is not used as a bio-fertiliser?
Options
A : Bacteria
B : Algae
C : Cyanobacteria
D : Fungi
Which of the following is not a type of manure?
Options
A : Farmyard manure
B : Compost manure
C : Platinum manure
D : Green manure
Why is there a need to switch to organic farming?
Options
A : Increasing poverty
B : Increasing road accidents
C : Increasing environmental pollution
D : Increasing population
With our present-day lifestyles, what is a major cause of concern?
Options
A : Inflation
B : Poverty
C : Illiteracy
D : Environmental Pollution
What are bio-insecticides?
Options
A : Insects
B : Living organisms that kill specific insects
C : Insects that kill other big insects
D : Fungi
Which of the following statements is not related to mycorrhiza?
Options
A : Many members of genus Glomus forms mycorrhiza
B : Fungal symbiont absorbs nitrogen
C : Plants show resistance to root-borne pathogens
D : There is an overall increase in plant growth and development
Which of the following bacteria cannot fix atmospheric nitrogen?
Options
A : Nostoc
B : Anabaena
C : Oscillatoria
D : Lactobacillus
Presence of which of the following elements is required for nitrogen fixation?
Options
A : Phosphorus
B : Carbon
C : Silver
D : Oxygen
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