Waec Model Questions Vol1 2019 Agricultural Science Question 2

Practice essay / theory question 2 from the 2019 Waec Model Questions Vol1 Agricultural Science examination. This question covers Soil Science .

Waec Model Questions Vol1 2019 Agricultural Science Essay / Theory
Topic: Soil Science
Question 2 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • AGRICULTURAL_SCIENCE • essay
Waec Model Questions Vol1 2019 Agricultural Science Question 2 diagram

The illustration shows a simple soil‑column apparatus used to investigate the effect of soil texture on water infiltration rate.

Question Parts

( a )
Identify three components of the set‑up and state the function of each component.
( b )
The experiment is performed on three soil textures – sand, loam and clay. The time taken for 200 ml of water to infiltrate each column is recorded as follows: • Sand – 30 s • Loam – 70 s • Clay – 150 s Calculate the infiltration rate (ml s⁻¹) for each soil and rank the soils from highest to lowest infiltration rate.
( c )
Explain two physical reasons why the infiltration rates differ among sand, loam and clay.

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About This Question

This is Waec Model Questions Vol1 2019 Agricultural Science Question 2. It is one of the essay questions from the 2019 Waec Model Questions Vol1 Agricultural Science examination.

The question covers Soil Science .

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