Neco 2021 Geography Question 49
Practice objective / multiple choice question 49 from the 2021 Neco Geography examination.
A soil sample contains 40\% sand, 20\% clay and the remainder silt. The field capacity (FC) in millimetres can be estimated by \(FC = 0.2\,(\%\,\text{sand}) + 0.5\,(\%\,\text{silt}) + 0.8\,(\%\,\text{clay})\). The wilting point (WP) is given by \(WP = 0.1\,(\%\,\text{sand}) + 0.3\,(\%\,\text{silt}) + 0.6\,(\%\,\text{clay})\). A crop requires at least 30\,mm of available water, where available water = FC - WP. Determine the percentage of silt, the field capacity, the wilting point, the available water, and state whether the soil is suitable for the crop.
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About This Question
This is Neco 2021 Geography Question 49. It is one of the objective questions from the 2021 Neco Geography examination.
Difficulty level: Medium .
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