NATIONAL OPEN UNIVERSITY OF NIGERIA
14/16 AHMADU BELLO WAY, VICTORIA ISLAND, LAGOS
SCHOOL OF SCIENCE AND TECHNOLOGY
MARCH/APRIL 2014 EXAMINATION
COURSE CODE: SOS 301
COURSE TITLE: INTRODUCTIONS TO PEDOLOGY AND SOIL CLASSIFICATION
TIME ALLOWED: 2 1/2 HOURS
INSTRUCTION: ANSWER ANY FOUR QUESTIONS
Question 0ne
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 Two
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 Three
a) What is weathering?
b) List the common types of weathering
c) Write a comprehensive note on physical weathering
Question Four
a) List the components of i) chemical weathering ii) biological weathering
b) Describe soil formation under passive and active factors
Question five
a) List the 3 basic groups of soil properties
b) List and discuss the soil physical and biological properties
Question Six
Discuss the types and importance of soil amendment to agriculture
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