Agricultural Science 2012 WAEC Past Questions

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A fresh soil sample of mass 180 g had a mass of 120 g after oven-drying. Determine the percentage water content of the soil.

A. 40.4%
B. 38.3%
C. 35.3%
D. 33.3%

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The earthworm is important to the farmer because it

A. improves soil texture
B. destroys soil pathogens
C. checks soil erosion
D. improves soil structure

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The soil water that is readily available for absorption by plant roots is called

A. capillary water
B. gravitational water
C. hygroscopic water
D. superfluous water

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Farmers practice mixed farming because they can

A. easily secure loan to expand their farms
B. specialize in either the growing of crops or rearing of animals
C. use the manure from the animals to fertilize their crops
D. easily control pests and diseases on their farms

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Which of the following factors should be considered in selecting cover crops? The cover crops must I. be easy to propagate II. compete with the main crops III. have roots capable of binding soils IV. be slow growing

A. I and II only
B. II and III only
C. I and III only
D. III and IV only

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Agricultural Science 2012 WAEC Past Questions

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