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WAEC Agricultural Science questions: Soil formation and properties

18 questions with answers and explanations. Tap an option to check yourself.

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All topicsAgricultural economics and extension · 19Animal pests and diseases · 18Animal reproduction and nutrition · 18Classification and anatomy of farm animals · 18Crop classification and propagation · 18Crop pests and diseases · 19Farm tools and mechanisation · 18Fisheries and aquaculture · 18Forestry · 18Husbandry of field crops · 19Irrigation and drainage · 18Livestock management · 18Meaning and importance of agriculture · 17Soil fertility, manures and fertilisers · 19Soil formation and properties · 18Weeds and weed control · 18

  1. Question 1· Soil formation and properties· WAEC

    In a soil profile, the top layer rich in humus is the

    Explanation and discussion

  2. Question 2· Soil formation and properties· WAEC

    Which soil type has the largest particles?

    Explanation and discussion

  3. Question 3· Soil formation and properties· WAEC

    Which rock type forms from cooled magma and weathers to give the parent material of many soils?

    Explanation and discussion

  4. Question 4· Soil formation and properties· WAEC

    Soil texture can be estimated in the field by

    Explanation and discussion

  5. Question 5· Soil formation and properties· WAEC

    A soil with a pH of 4.5 is

    Explanation and discussion

  6. Question 6· Soil formation and properties· WAEC

    Soil formed from the breakdown of rocks in its original place is

    Explanation and discussion

  7. Question 7· Soil formation and properties· WAEC

    Clay soils hold a lot of water because they have

    Explanation and discussion

  8. Question 8· Soil formation and properties· WAEC

    Soil formed from material deposited by rivers is

    Explanation and discussion

  9. Question 9· Soil formation and properties· WAEC

    The capacity of soil to hold water is greatest in

    Explanation and discussion

  10. Question 10· Soil formation and properties· WAEC

    The best soil for most crops is

    Explanation and discussion

  11. Question 11· Soil formation and properties· WAEC

    Physical weathering of rocks can be caused by

    Explanation and discussion

  12. Question 12· Soil formation and properties· WAEC

    The type of soil water held so tightly round particles that plants cannot use it is

    Explanation and discussion

  13. Question 13· Soil formation and properties· WAEC

    The soil horizon that is darkest and richest in humus is the

    Explanation and discussion

  14. Question 14· Soil formation and properties· WAEC

    A soil with good crumb structure has

    Explanation and discussion

  15. Question 15· Soil formation and properties· WAEC

    A soil with large particles and large pore spaces that drains quickly is

    Explanation and discussion

  16. Question 16· Soil formation and properties· WAEC

    Earthworms improve the soil by

    Explanation and discussion

  17. Question 17· Soil formation and properties· WAEC

    Wind is an agent of

    Explanation and discussion

  18. Question 18· Soil formation and properties· WAEC

    The breakdown of rocks by repeated heating and cooling is

    Explanation and discussion

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