Waec Agricultural Science 1989 Past Questions and Answers

Question 61:

• WAEC 1989

Write short notes on the following sources of farm power:(a) Work animals; (b) Machine engines, (c) Water (d) Sun

Question 62:

• WAEC 1989

(a) What is weathering ?
(b) Enumerate three processes involved in rock weathering
(c) List and discuss briefly the agents of two of these processes

Question 63:

• WAEC 1989

(a) Distinguish between irrigation and drainage (b) State and explain four systems of irrigation and two of drainage.

Question 64:

• WAEC 1989

Describe briefly the economic importance and the control measures of the following: (a) Stem borers of cereal, (b) Grain weevils of stored produce: (c) Cotton stainer; (d) Cassava mealy bug

Question 65:

• WAEC 1989

Write short notes on the following: (a) Selective exploration; (b) Deforestation; (c) Regeneration (d) Afforestation