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Quick Revision: Microorganisms : Friend or Foe Video Lecture | Science Class 8

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FAQs on Quick Revision: Microorganisms : Friend or Foe Video Lecture - Science Class 8

1. How do microorganisms benefit humans?
Ans. Microorganisms benefit humans in various ways such as aiding in digestion, producing antibiotics, decomposing waste, and helping in the production of food and beverages.
2. Can all microorganisms harm humans?
Ans. Not all microorganisms harm humans. Some microorganisms are actually beneficial and essential for various processes such as nutrient cycling and maintaining a balanced ecosystem.
3. How can we prevent the harmful effects of pathogenic microorganisms?
Ans. The harmful effects of pathogenic microorganisms can be prevented by practicing good hygiene, proper sanitation, vaccination, and use of antibiotics as prescribed by healthcare professionals.
4. What are some common examples of beneficial microorganisms?
Ans. Some common examples of beneficial microorganisms include probiotics, yeast used in baking and brewing, bacteria used in sewage treatment plants, and nitrogen-fixing bacteria in the soil.
5. How do microorganisms play a role in environmental sustainability?
Ans. Microorganisms play a crucial role in environmental sustainability by decomposing organic matter, cycling nutrients, and maintaining the balance of ecosystems. They are essential for the health of the planet and its inhabitants.
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