Fundamentals of soil science UE Past Papers Questions.

Write short notes on the following:

1. Significance of soil colour
2. Management of soil temperature

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Discuss four factors that are likely to facilitate formation of soil aggregates.

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Write short notes on the following

1. Soil water potential
2. Soil particle density

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A 250 cm³ cylindrical container was used to collect undisturbed soil sample. The container and the soil weighed 410 g when dried. When empty, the container weighed 70 g. Calculate the bulk density and porosity of the soil (assume that particle density of the soil is 2.65 g/cm³)

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1. Compare the structures and any five properties of kaolinite and montmorillonite types of clays.
2. Describe the sources of negative charges in silicate clays.

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