Waec Model Questions Vol1 2021 Geography Question 20
Practice objective / multiple choice question 20 from the 2021 Waec Model Questions Vol1 Geography examination.
A soil sample contains 45% sand, 35% silt and 20% clay by weight. Field capacity (FC) can be estimated by FC = 0.2 × clay % + 0.1 × silt % (in % water content by weight) and wilting point (WP) by WP = 0.1 × clay % + 0.05 × silt % (in %). Assuming that 1% water content by weight corresponds to 10 mm of water per 1 m depth, determine the available water capacity (AWC) in millimetres for a 1.0 m thick soil layer with a bulk density of 1.4 g cm⁻³.
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About This Question
This is Waec Model Questions Vol1 2021 Geography Question 20. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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