allerySpinosad, a by-product of fermentation that destroys pests, is best described as which type of agent?
AA food preservative
BA chemical fertilizer
CA biopesticide
DAn antibiotic
Answer & Solution
Correct answer: C. A biopesticide
1. Bacterial and fungal toxins can destroy pests and pathogens.
2. Spinosad is a by-product of fermentation that does this.
3. It is therefore a biopesticide, not a fertilizer or preservative.
4. Antibiotics target disease microbes in the body, not crop pests.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 7 "Introduction to Microbiology", p.94_
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