Gce Model Questions Vol1 2022 Geography Question 30

Practice objective / multiple choice question 30 from the 2022 Gce Model Questions Vol1 Geography examination.

Gce Model Questions Vol1 2022 Geography Objective / Multiple Choice Medium Difficulty
Question 30 GCE_MODEL_QUESTIONS_VOL1 • 2022 • GEOGRAPHY • objective

A soil profile 1.2 m deep has a bulk density of \(1.4\ \text{g cm}^{-3}\) and a porosity of 45 %. Its volumetric water content at field capacity is 30 % and at wilting point is 12 %. (a) Calculate the total amount of water (in mm) that can be stored between field capacity and wilting point in the whole profile (the available water). (b) If a crop requires 450 mm of water during the growing season, what percentage of the crop's water requirement can be met by the soil's available water?

Answer Options

A. Available water = 180 mm; ≈40 % of crop requirement
Correct Answer B. Available water = 216 mm; ≈48 % of crop requirement
C. Available water = 300 mm; ≈67 % of crop requirement
D. Available water = 240 mm; ≈53 % of crop requirement
Correct Answer
B
Correct Option:
Available water = 216 mm; ≈48 % of crop requirement

About This Question

This is Gce Model Questions Vol1 2022 Geography Question 30. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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