WAEC Agricultural Science Questions and Answers 2020/2021

See Waec Agricultural Science Questions and Answers for Objectives and Essay 2020 Here.

The Waec Agric answers 2020 has been released. The West African Examination Council (WAEC) SSCE Agricultural Science objective and theory paper will be written on Wednesday, 19th August, 2020.

The WAEC Agric exam will start by 2:00 pm and end 5:00 pm. In this post, we will be posting out samples of the Waec Agric questions for candidates that will participate in the examination for practice purposes.

WAEC Agric Questions and Answers 2020:

PAPER 2 [Essay]
Answer any four questions.
Write your answers on the answer booklet provided.

1. (a) Differentiate between land ownership by leasehold and land ownership by freehold.
(b) Mention five ways in which non-governmental organizations contribute to agricultural development in West Africa.
(c) State four ways in which rural-urban migration has hindered agricultural development in West Africa. 
(d) Mention three socio-economic uses of land.
(e) Explain two ways by which each of the following environmental factors affect agricultural production: i. soil organisms; ii. soil texture.

ANS: (a) Leasehold involves the payment of fees for land used over a stated period of time under
agreed specified conditions WHILE freehold is the outright purchase of land (permanent ownership)

(c) Ways in which rural-urban migration has hindered agricultural development in West
Africa
– Shortage/ scarcity of farm labour
– Causes high cost of farm labour
– Poor quality of labour in rural areas resulting in low productivity
– Decrease in food production/food insecurity
– Decrease in export
– Inadequate supply of raw materials to agro industries
– Poor adoption of agricultural innovation due to ageing farming population.

2. (a) (i) Distinguish between straight fertilizers and compound fertilizers.
(ii) Give four examples of inorganic fertilizers.
(b) List three biotic and three climatic factors that influence agricultural production in West Africa.
(c) State four ways by which the carbon cycle is important in agriculture.

3. (a) Explain the term soil.
(b) List four characteristics of loamy soil.
(c) (i) Draw an annotated diagram of the water cycle.
(ii)  List the three types of soil water.

4. (a) Explain each of the following terms as used in crop production:
(i) grafting;
(ii) thinning;
(iii) staking.
(b) State two reasons for adopting each of the crop production activities listed in 4(a).
(c) Mention the botanical names of two species of yam.
(d) State two uses of ginger.

5. (a) (i)  Explain the terms line breeding and inbreeding as used in animal improvement.
(ii) State three advantages and three disadvantages of inbreeding.
(b) State four factors that determine the amount of water required by farm animals.
(c) Give four sources of calcium in the diet of livestock.

6. (a) State three characteristics of each of the following classes of animal feedstuffs;
(i) roughage;
(ii) basal feeds;
(iii) concentrates.
(b) Enumerate four factors that should be considered in selecting a site for the construction of a fish pond.
(c) State three preventive and control measures of diseases in farm animals.

7. (a) Explain the following terms as used in agricultural production:
(i) hired labour;
(ii) fixed capital;
(iii) management.
(b) Give three reasons why the prices of most agricultural produce are unstable in West Africa.
(c) Describe the following agricultural extension teaching methods:
(i) field day;
(ii) agricultural shows.

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