WAEC Agricultural Science 1991 Past Questions

(a) State four roles of government in agricultural production (b) Describe four traditional land ownership system in Nigeria and give one disadvantage of each system.

Discuss eight maintenance practices including the precautions you would take to keep the tractor operating safely and ensure its durability.

(a) With the aid of a fully labelled diagram, describe the carbon cycle. (b) Explain the importance of carbon cycle to Crops and animals

Describe briefly the side effects of preventive and control measures of method diseases and pests of crops under the following headings: (a) chemical control (b) biological control (c) cultural of control .

a) Describe briefly five management methods adopted in the forest area to ensure a continuous timber supply. (b) Enumerate six benefits derived from forestry and range

Explain briefly the following terms: (a). ovulation; (b) oestrus cycle; (c) gestation (d) parturition

a) What is balanced ration ? (b) If birds at point of lay were fed a ration/feed containing: maize meal - 65°/ , groundnut cake - 25%, fish meal - 5% and brewers' grain - 5%. Name the other feed ingredients that are essential which are not listed. State the importance of the ingredients you have listed.

(a) Explain agricultural marketing and four channels of marketing farm produce. (b) State four problems associated With marketing of farm produce by small-scale farmers.

List six environmental factors affecting agricultural production in Nigeria. (b) Explain briefly how five of the factors listed in (a) can affect agricultural production in Nigeria

State the law of demand and six basic assumptions as related to agricultural products. Illustrate your answer with the aid of a demand schedule and a demand curve