Ncert Exercises & Solutions

Q.47 How do microbes reduces the environmental degradation causes by chemicals?

Chemicals from ferilers and pesticides are highly toxic to human beings and animals alike, and have been poling cur environment, To reduce the environmental degradation caused by chemicals, mcrobes can be used both as ferilsers and pesticides and can be called biolorisors and bopestides, respectively.

Microbes are used as biofertiliserrs to enrich the siol nutrients, e.g,. Rhizobium, Azotobacter, Azospirllum, etc, which can fix atmospheric nitrogen in teh soil Bacillus thuringiensis bacteria acct as biospsticides to control the growth of insect pets.

Trichoderma, fungal species, is effective bicontiol agont of several plant pathogens. Baculovius used as biological contol aganis in genus Nucleopo}yhectovius are excellent for species-spectc, narow spectrum insecticidal applications.

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