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Microorganisms: Friend And Foe Mock Tests

26 questions available

Microorganisms: Friend And Foe Mock Test 1

Questions: 26

Sample Questions

Class 8 Science
Which of the following is a natural method of nitrogen fixation?
A Industrial Haber process
B Lightning
C Use of nitrogenous fertilisers
D Legume root nodules (human-assisted)
Class 8 Science
Which type of microorganism causes malaria in humans?
A Bacteria
B Fungi
C Protozoa
D Algae
Class 8 Science
Rhizobium bacteria live in the roots of which type of plants?
A Wheat
B Rose
C Gram (pulse crops)
D Maize
Class 8 Science
Which of the following is a prokaryotic cell?
A Amoeba
B Paramecium
C Escherichia coli
D Spirogyra
Class 8 Science
Which of the following is a natural method of nitrogen fixation?
A Industrial Haber process
B Blue-green algae (cyanobacteria)
C Electric discharge in atmosphere
D Both b and c
Class 8 Science
Which of the following microorganisms fixes atmospheric nitrogen in the soil?
A Rhizobium
B Chlamydomonas
C Yeasts
D Plasmodium
Class 8 Science
Which non-metal is used in water purification systems to kill bacteria and viruses?
A Nitrogen
B Chlorine
C Carbon
D Sulphur
Class 8 Science
Rhizobium bacteria are found in the root nodules of which plant family?
A Grasses
B Legumes
C Rose family
D Solanaceae

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