Nar0140:Soil Genesis And Classification Question Paper
Nar0140:Soil Genesis And Classification
Course:Diploma In Agriculture
Institution: Meru University Of Science And Technology question papers
Exam Year:2012
QUESTION ONE – 30 MARKS
(a) Define soil genesis? (1Mark) (b) Discuss the vegetation factor on soil formation. (6Marks) (c) Briefly discuss the functions of soil in our ecosystem. (5Marks) (d) Explain soil water as one of soil components. (5Marks) (e) Giving examples describe the igneous rocks (5Marks) (f) Describe the basic steps in making a soil survey. (4Marks) (g) Differentiate between solution and carbonation processes of soil formation. (4Marks) QUESTION TWO – 15 MARKS (a) Describe the sedimentary rocks. (5Marks) (b) Describe the A-horizon of soil profile (5Marks) (c) Outline the importance of soil organic matter. (5Marks) QUESTION THREE – 15 MARKS (a) Define soil profile (2Marks) (b) Discuss the importance of soil profile in crop production (10Marks) (c) State three types of biological weathering. (3Marks) QUESTION FOUR – 15 MARKS (a) Define leaching. (2Marks) (b) Discuss the effect of topography on soil formation. (5Marks) (c) Stating its uses describe the mollisol soils of word (8Marks) QUESTION FIVE – 15 MARKS (a) Discuss the factors affecting weathering of minerals. (10Marks) (b) Describe the Global Positioning system as non-intrusive method of soil investigation. (5Marks)
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