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WAEC Agricultural Science 2018 Question 15

Question 15

Soil Properties

Study the diagram below.
The purpose of the part labelled I in the experiment is to

Diagram for this question
  1. A.allow proper aggregation of soil particles.
  2. B.allow even evaporation of water.
  3. C.prevent water from escaping.
  4. D.distribute water around the soil.
Show the answer and explanation

Answer: B (allow even evaporation of water.)

Explanation

I is a stirring rod; stirring lets the water evaporate evenly.