Waec Model Questions Vol1 2020 Geography Question 40

Practice objective / multiple choice question 40 from the 2020 Waec Model Questions Vol1 Geography examination.

Waec Model Questions Vol1 2020 Geography Objective / Multiple Choice Medium Difficulty
Question 40 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • GEOGRAPHY • objective

A soil sample taken from a field has a dry mass of 1.2 kg and occupies a volume of 0.8 L. The particle density of the mineral grains is 2.65 g cm⁻³.\n(a) Calculate the bulk density of the soil in g cm⁻³.\n(b) Using the relationship porosity n = 1 - (ρb/ρs), where ρb is bulk density and ρs is particle density, determine the soil porosity as a percentage (to one decimal place).

Answer Options

A. Bulk density = 1.5 g cm⁻³; Porosity ≈ 40.0 %
B. Bulk density = 1.4 g cm⁻³; Porosity ≈ 47.2 %
C. Bulk density = 1.6 g cm⁻³; Porosity ≈ 39.6 %
Correct Answer D. Bulk density = 1.5 g cm⁻³; Porosity ≈ 43.4 %
Correct Answer
D
Correct Option:
Bulk density = 1.5 g cm⁻³; Porosity ≈ 43.4 %

About This Question

This is Waec Model Questions Vol1 2020 Geography Question 40. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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