Agricultural Science 2007 Waec Past Questions and Answers

Question 61 :

• WAEC 2007

(a) Enumerate four economic importance of rocks: (i) to man; (ii) in agriculture. (b) State two characteristics of each of the following (1) igneous rock (ii) metamorphic rock. (c) Describe the mode of formation of sedimentary rocks.

Question 62 :

• WAEC 2007

(a) Explain the following terms as used in crop production: (i) floriculture; (ii) taungya farming; (iii) ley farming. (b) State eight uses of ornamental plants to man. (c) Mention four fibre crops grown in your country.

Question 63 :

• WAEC 2007

(a) Define pasture.
(b) List three features of natural pastures.
(c) A piece of land to be used to establish a pasture of Stylosanthes gracilis was surveyed to be circular.
(i) If the radius of the land is 200m and the spacing of the pasture legume is lm by 50cm, what is the population of the legume at one seed per stand?
(ii) If the germination percentage is 75, calculate the expected plant population. (iii) Give two ways in which Stylosanthes gracilis is important in agricultural production.

Question 64 :

• WAEC 2007

(a) Explain four of the following management practices in animal production: (i) steaming up; (ii) culling; (iii) candling; (iv) tattooing; (vi) creep feeding. (b) List five signs of heat in animals. (c) Mention three reasons for castrating farm animals

Question 65 :

• WAEC 2007

Discuss the effects of temperature on: (a) brooding of chicks; (b) reproduction in livestock; (c) milk production; (d) egg production.