Waec Agricultural Science 2010 Past Questions and Answers

Question 61:

• WAEC 2010

(a) Explain briefly how the following affect agricultural production:(I) agricultural education and extension (ii) environmental degradation. [8 marks]
(b) Enumerate three problems associated with communal land tenur system. [3 marks]
(c) List four components of an incubator. [2 marks]
(d) Mention one storage structure for each of the following farm produce: (i) yam tubers (ii) cowpea seeds (iii) fresh fish. [3 marks]

Question 62:

• WAEC 2010

(a) Explain the term chemical weathering of rocks. [2 marks]
(b) Discuss four processes of chemical weathering of rocks [10 marks]
(c) State four ways in which soil temperature is important for crop growth (4 marks)

Question 63:

• WAEC 2010

(a) Give two reasons for each of the following practices undertaken by some West African farmers (i) movement of herdsmen and their flocks southwards to the rain forest zone during the dry season (4 marks)
(ii) Preference for the use of simple farm tools over farm machinery (4 marks)
(b)(i) Identify four problems associated with the movement of herdsmen (4 marks)
(ii) Suggest a solution to each of the problems. [4 marks]

Question 64:

• WAEC 2010

(a) Outline six benefits derived from growing ornamental plants, [6 marks]
(b) State four symptoms of cassava mosaic disease. [4 marks]
(c) Explain the following terms as used in forest management. (i) selective exploitation (ii) regeneration (iii) taungya farming [6 marks]

Question 65:

• WAEC 2010

(a) State four ways in which weeds are beneficial to the farmer. [4 marks]
(b) Classify insect-pests in three groups based on their mode of feeding and give two examples of each [9 marks]
(c) State three ways by which pasture can be made available to cattle. [3 marks]