Waec Agricultural Science 1990 Past Questions and Answers

Question 51:

• WAEC 1990

(a) Mention two major elements of climate. (b) Discuss six ways by which climate and vegetation influence soil formation

Question 52:

• WAEC 1990

(a) Explain the term soil structure and state its importance in agriculture. (b) State four properties each of clay and sandy soil.

Question 53:

• WAEC 1990

In a tabular form, discuss cocoa, yam and millet production under the following sub-headings: (a) climatic requirement; (b) soil requirement; (c) cultural practices; (d) method of propagation.

Question 54:

• WAEC 1990

(a) State the laws of Mendel (b) Discuss three advantages and two disadvantages of: (i) introduction-, (ii) selection in crop improvement

Question 55:

• WAEC 1990

(a) What is rangeland ? (b) Discuss seven practices of management and improvement of rangeland