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MODERN PUBLICATION-MICROBES IN HUMAN WELFARE-EXERCISE
- The primary treatment of waste water involves the removal of :
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- BOD of waste water is estimated by measuring the amount of :
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- Which one of the following alcoholic drinks is produced without distil...
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- The residue left after methane production from cattle dung is :
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- Farmers have reported over 50% higher yields of rice by using the biof...
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- Biological control component is central to advanced agricultural produ...
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- Which one of the following is non-symbiotic biofertilizer
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- A biofertilizer is:
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- Which organisms serves as a biofertilizer ?
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- Azotobacter and Bacillus polymyxa are:
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- The phenomenon of using a predator for controlling a pest is:
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- Crop rotation is carried out for:
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- Nitrogen fixation is
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- Leghaemoglobin occurs in:
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- BGA is chiefly used as fertilizer in:
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- Which element plays an important role in nitrogen fixation ?
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- The neem is used as a natural insecticide because:
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- Which one of the following helps in absorption of phosphorus from soil...
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- Secondary sewage treatment is mainly a:
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- Which of the following is mainly produced by the activity of anaerobic...
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