Q1. What are antibiotics? What precautions must be taken while taking antibiotics?
Q2. How are viruses different from other microorganisms ?
Q3.What are antibodies?How do they work ?
Q4. What are vaccines ?How are they prepared ?
Q5.What are communicable diseases?
Q6.Explain the commercial role of microorganisms?
Q7.How are microorganisms responsible for soil fertility?
Q8.What is food preservation ? What are the various ways in which food can be
preserved ?
Q9.Explain nitrogen cycle with a well labelled diagram .
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question 5 communicable diseases are diseases that can spread from one another.
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