Nar0140:Soil Genesis And Classification Question Paper
Nar0140:Soil Genesis And Classification
Course:Diploma In Agricultural Education And Extension
Institution: Meru University Of Science And Technology question papers
Exam Year:2010
University Examinations 2010/2011
FIRST YEAR, SECOND/FIRST SEMESTER EXAMINATIONS FOR CERTIFCATE
IN AGRICULTURE/DIPLOMA IN AGRICULTURAL EDUCATION AND EXTENSION
BIO 0113: PLANT PHYSIOLOGY
DATE: APRIL 2011 TIME: 11/2 HOURS
QUESTION ONE – (30 MARKS)
(a) State the importance of soil organism as a soil component (5 Marks) (b) Discuss the following principles of soil classification: (i) Principle of a real transition (ii) Principle of continuous alteration forms with time. (10 Marks) (c) Describe the ground penetrating radar as a modern technology for soil investigation stating its advantages. (5 Marks) (d) Explain the following chemical processes in soil formation. (i) Solution (ii) Hydration. (10 Marks)
QUESTION TWO – (15 MARKS)
(a) Discuss the soil in our ecosystem. (10 Marks) (b) Explain the cation exchange and consistence properties of soil. (5 Marks)
QUESTION THREE – (15 MARKS)
(a) Describe the applications of remote sensing. (10 Marks) (b) State the advantages of remote sensing. (5 Marks)
QUESTION FOUR – (15 MARKS)
(a) Describe the factors that influence the rate of organic matter decomposition. (5 Marks)
(b) Explain the factors that influence the soil formation. (10 Marks)
QUESTION FIVE – (15 MARKS)
(a) Briefly describe the characteristics of vertisols stating its uses. (6 Marks) (b) Classify the soil water giving their characteristics. (9 Marks)
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