mdcat logical reasoning MCQ #541

A farmer's wheat crop shows yellowing leaves. Soil tests show high pH. What is the most probable cause?

mdcat logical reasoning MCQ #541

  1. Question 1

    Q1. A farmer's wheat crop shows yellowing leaves. Soil tests show high pH. What is the most probable cause?

    • A) Iron deficiency due to pH-induced nutrient lockout
    • B) Overuse of nitrogen-based fertilizers
    • C) Fungal root rot from overwatering
    • D) Genetic mutation in chlorophyll production

    Answer: Iron deficiency due to pH-induced nutrient lockout

    Explanation: High pH reduces iron availability. Iron deficiency due to pH-induced nutrient lockout is correct because it matches what the question requires. USAT, HAT and MDCAT analytical sections repeat this pattern.