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Science
8th
grade
Microorganisms : Friend and Foe | Chapter Assessment | English | Grade 8
7 questions
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- 1. Multiple Choice
When left open, bread gets spoilt in the rainy season due to the accumulation of ___________ .
Bacteria
Fungi
Protozoa
Algae
- 2. Multiple Choice
Which of the following diseases is not caused by Viruses?
Cold
Influenza
Chicken Pox
Tuberculosis
- 3. Multiple Choice
Can microorganisms exist freely?
Yes
No
- 4. Multiple Choice
Communicable diseases do not spread through _________ .
air
online interaction
physical contact
food
- 5. Multiple Choice
Which of the following is a mode of transmission for malaria and dengue?
Mouse
Cat
Mosquito
Ants
- 6. Multiple Choice
Ingredients that are used to check the growth of microorganisms are called ______________ .
Preservatives
Pathogens
Vaccine
Carriers
- 7. Multiple Choice
Which of the following bacterium is involved in the fixation of nitrogen in leguminous plants?
Escherichia Coli
Spirillum
Rhizobium
Bacillus
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