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Nitrogen-fixing and Industrially Important Bacteria MCQs for Competitive Exams

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Nitrogen-fixing and Industrially Important Bacteria MCQs for Competitive Exams

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Topic Notes: Nitrogen-fixing and Industrially Important Bacteria

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Quick Overview

Nitrogen-fixing and Industrially Important Bacteria MCQs in Biology are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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1
Which nation maintains the world's largest livestock population despite facing challenges with low individual animal productivity?
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2
Who provided the first definitive evidence that blue-green algae are capable of nitrogen fixation?
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3
Which group of organisms is responsible for the largest single contribution of carbon dioxide to the atmosphere through respiration?
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4
How is an antibiotic defined in a biological context?
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5
Which of the following microorganisms is classified as an iron bacterium?
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6
Which organisms possess the biological capability to fix atmospheric nitrogen?
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7
Who was the first scientist to isolate the microbes responsible for the conversion of ammonium salts to nitrates?
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8
Which of the following statements accurately describe the advantages of using biofertilizers in agriculture?
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9
What is the name of the heat treatment process used to stabilize milk and eliminate pathogenic bacteria?
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10
Which substance is produced by a specific group of archaea bacteria?
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