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Oil spills on the sea surface are difficult to clear mechanically. Which bacteria, called hydrocarbonoclastic bacteria, are used to break them down?
APseudomonas and Alcanovorax borkumensis
BLactobacillus and Streptococcus thermophilus
CAspergillus oryzae and Xanthomonas species
DAcetobacter and Glucanobacter oxydans
Answer & Solution
Correct answer: A. Pseudomonas and Alcanovorax borkumensis
1. Oil spills are toxic to aquatic life and hard to remove mechanically.
2. Pseudomonas spp. and Alcanovorax borkumensis can destroy the hydrocarbons.
3. These are called hydrocarbonoclastic bacteria (HCB).
4. The Lactobacillus, Aspergillus and Acetobacter sets belong to food and dairy processing, not oil clean-up.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 7 "Introduction to Microbiology", p.93_
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