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प्रश्न
Mention two advantages of adding blue-green algae to paddy fields.
अति संक्षिप्त उत्तर
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उत्तर
Two advantages of adding blue-green algae to paddy fields are fixing atmospheric nitrogen and adding organic matter to the soil, which increases soil fertility.
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अध्याय 12: Microbes in Human Welfare - Test Your Progress [पृष्ठ ५०२]
