Allied & ICAR Exam Bank • ALLIED_2402 MCQ • 2 Marks

Section 8: General Aptitude

Verbal Aptitude

Subtopic: Critical Reasoning

Question Statement:

Argument: 'Replacing synthetic nitrogen fertilizer entirely with farmyard manure will eliminate greenhouse gas emissions from cereal farming.' Which finding casts doubt on this conclusion?

Options:

  • (A) Anaerobic decomposition of large quantities of farmyard manure in moist soils produces massive emissions of methane and nitrous oxide, potent greenhouse gases.
  • (B) Farmyard manure improves soil organic carbon content.
  • (C) Synthetic nitrogen is synthesized via the Haber-Bosch process.
  • (D) Cereal crops absorb nitrate and ammonium ions.

Answer Key:

A

Step-by-Step Solution & Explanation

Manure decomposition generating methane and nitrous oxide directly refutes the claim of greenhouse gas elimination.
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