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6 Questions

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Microorganisms

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Questions and Answers

Which of the following diseases is caused by a virus?

Tuberculosis

Malaria

Cholera

Influenza (correct)

Which of the following is a common method of food preservation using microorganisms?

Fermentation (correct)

Microwaving

Salting

Freezing

What is the role of nitrogen-fixing bacteria in agriculture?

Converting atmospheric nitrogen into a form that plants can use (correct)

Producing harmful toxins in the soil

Causing nitrogen depletion in the soil

Absorbing excess nitrogen from the soil

Which of the following is a fossil fuel?

Coal Signup and view all the answers

What is the primary component of coal?

Carbon Signup and view all the answers

Which process is responsible for the formation of petroleum?

Decomposition of marine organisms Signup and view all the answers

Study Notes

Diseases and Microorganisms

Influenza is a disease caused by a virus.
Fermentation is a common method of food preservation using microorganisms.

Nitrogen-fixing Bacteria and Agriculture

Nitrogen-fixing bacteria play a crucial role in agriculture by converting atmospheric nitrogen into a form that can be used by plants.

Fossil Fuels

Coal is a fossil fuel.
The primary component of coal is carbon.
Petroleum is formed through the process of diagenesis, which involves the transformation of organic matter under high pressure and temperature over millions of years.

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Description

Test your knowledge on microorganisms as both friends and foes with this class 8th quiz. Explore common methods of food preservation using microorganisms, the role of nitrogen-fixing bacteria in agriculture, and diseases caused by viruses. Sharpen your understanding of these vital aspects of microbiology.