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प्रश्न
______ are used to fix nitrogen in the soil for agriculture.
रिक्त स्थान भरें
उत्तर
blue-green algae are used to fix nitrogen in the soil for agriculture.
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Interrelationship Between Plants and Animals
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
