Which of the following is a bacterium involved in denitrification?

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Which of the following is a bacterium involved in denitrification? Answer: Pseudomonas

Denitrification is the microbial process in which nitrate (NO₃⁻) is reduced to nitrogen gas (N₂), returning nitrogen to the atmosphere. Pseudomonas species are well-known denitrifying bacteria.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.