National Open University Exam Past Question – SOS 301 INTRODUCTIONS TO PEDOLOGY AND SOIL CLASSIFICATION

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

14-16 AHMADU BELLO WAY, VICTORIA ISLAND LAGOS

SCHOOL OF AGRICULTURAL SCIENCES

OCTOBER/NOVEMBER 2014 EXAMINATION

COURSE CODE: SOS 301

COURSE TITLE: INTRODUCTIONS TO PEDOLOGY AND SOIL CLASSIFICATION

INSRUCTION: Answer Any Four Questions in

TIME ALLOWED: 2 1/2 hours

Question 0ne

Discuss the types and importance of soil amendment to agriculture

Question Two

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

Question Three

a) Describe the structure call Rock b) List the 3 types of rocks
c) Write a short descriptive note on each of the rock types

Question four

a) What is weathering?
b) List the common types of weathering
c) Write a comprehensive note on physical weathering

Question five

a) List the 3 basic groups of soil properties
b)List and discuss the soil physical and biological properties

Question Six

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