Waec Model Questions Vol1 2019 Geography Question 25

Practice objective / multiple choice question 25 from the 2019 Waec Model Questions Vol1 Geography examination.

Waec Model Questions Vol1 2019 Geography Objective / Multiple Choice Medium Difficulty
Question 25 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • GEOGRAPHY • objective

A soil sample contains 20 % clay, 35 % silt and 45 % sand. (a) Classify the soil texture using the USDA triangle (state the class). (b) The water‑holding capacity (WHC) in millimetres can be estimated by WHC = 0.3 × %clay + 0.1 × %silt. Calculate the WHC and state whether the soil is suitable for rice cultivation, which requires a WHC of at least 20 mm.

Answer Options

Correct Answer A. Loam; WHC = 9.5 mm; not suitable for rice
B. Sandy loam; WHC = 12.0 mm; not suitable for rice
C. Silt loam; WHC = 8.0 mm; not suitable for rice
D. Clay loam; WHC = 9.5 mm; suitable for rice
Correct Answer
A
Correct Option:
Loam; WHC = 9.5 mm; not suitable for rice

About This Question

This is Waec Model Questions Vol1 2019 Geography Question 25. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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