How do microbes reduce the environmental | Class 12 Biology Chapter Microbes in Human Welfare, Microbes in Human Welfare NCERT Solutions

Current NCERT chapter

Academic session 2026-27, Chapter 8 in the current curriculum.

Welcome to the NCERT Solutions for Class 12 Biology - Chapter Microbes in Human Welfare. This page offers a step-by-step solution to the specific question from Exercise 0, Question 10:

How do microbes reduce the environmental degradation caused by chemicals?

. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 10:

How do microbes reduce the environmental degradation caused by chemicals?

Answer:

Chemicals from fertilisers and pesticides are highly toxic to human beings and animals alike and have been polluting our environment. For the reduction of environmental degradation which is caused by chemical, microbes, can be used both as fertilisers and pesticides and can be known as bio-fertilisers and bio-pesticides, simultaneously.

Microbes are used as bio-fertilisers to enrich the soil nutrients example: Rhizobium, Azotobacter, Azospirillum etc. which can fix atmospheric nitrogen in the soil. Bacillus thuringiensis bacteria acts as bio-pesticides to control the growth of the insect pests.

Trichoderma, fungal species, is effective biocontrol agents of several plant pathogens. Baculovirus used as biological control agents in genus Nucleopolyhedrovirus are excellent for species specific, narrow spectrum insecticidal applications.   

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Microbes in Human Welfare.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 10: How do microbes reduce the environmental degradation caused by chemicals?....

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