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National Open University Exam Past Question – SOS 301 October, 2013 Examination

NATIONAL OPEN UNIVERSITY OF NIGERIA SOS 301 INTRODUCTION TO PEDOLOGY AND SOIL CLASSIFICATION

14/16, Ahmadu Bello Way, Victoria Island

 

SCHOOL OF SCIENCE AND TECHNOLOGY October, 2013 Examination

 

 

Course Code:    SOS 301

 

Course Title:     INTRODUCTION TO PEDOLOGY AND SOIL CLASSIFICATION INSRUCTION: Answer Any Four Questions in 2 1/2 hours

Question 0ne

 

  1. a) What is soil?
  2. b) Briefly enumerate the importance of soil to man
  3. c) Based on percentage particle size composition, list the three 3 basic types of soils.

 

Question Two

 

  1. a) Describe the structure call Rock b)   List the 3 types of rocks
  2. c) Write a short descriptive note on rocks formed as a result of sedimentation and give 3 examples of rocks formed from such action

 

Question Three

  1. a) What is weathering
  2. b) List five agents of biological weathering.
  3. c) Write a comprehensive note on physical weathering

 

Question Four

 

  1. a) List the components of i) chemical weathering ii) biological weathering b)  Describe soil formation under passive and active factors

 

Question five

 

  1. a) Write a short note on i) soil porosity (ii) soil permeability (iii) soil infiltration b)  List any 3 soil s reactions

 

Question Six

 

  1. a) Discuss the types and importance of soil amendment to agriculture b) Write a short note on biological properties of the so
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